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Loss of quantum coherence
Quantum decoherence is the loss of quantum coherence. It involves generally a loss of information of a system to its environment. Quantum decoherence
Quantum_decoherence
Interpretation of quantum mechanics
collapse is explained by the mechanism of quantum decoherence. Decoherence approaches to interpreting quantum theory have been widely explored and developed
Many-worlds_interpretation
Process by which a quantum system takes on a definitive state
collapse does not exist; all wave function outcomes occur while quantum decoherence accounts for the appearance of collapse. Historically, Werner Heisenberg
Wave_function_collapse
Thought experiment in quantum mechanics
the quantum description of reality, which includes elements such as the superposition of states and wavefunction collapse or quantum decoherence, give
Schrödinger's_cat
Theory to explain the emergence of the classical world from the quantum world
einselection and decoherence. A study in 2010 is claimed to provide preliminary supporting evidence of quantum Darwinism with scars of a quantum dot "becoming
Quantum_Darwinism
Computer hardware technology that uses quantum mechanics
milestone. Recent milestones in quantum computing have increasingly focused on controlling decoherence through quantum error correction. In 2024, researchers
Quantum_computing
Theoretical problem in quantum physics
applicable. Quantum decoherence becomes an important part of some modern updates of the Copenhagen interpretation based on consistent histories. Quantum decoherence
Measurement_problem
Dissipation in quantum systems
dissipation from the framework of quantum mechanics. It shares many features with the subjects of quantum decoherence and quantum theory of measurement. The
Quantum_dissipation
Description of physical properties at the atomic and subatomic scale
good quantum numbers, and quantum chaos studies the relationship between classical and quantum descriptions in these systems. Quantum decoherence is a
Quantum_mechanics
Area of physical and philosophical debate
"The Role of Decoherence in Quantum Mechanics" by Guido Bacciagaluppi. Internet Encyclopedia of Philosophy: "Interpretations of Quantum Mechanics" by
Interpretations of quantum mechanics
Interpretations_of_quantum_mechanics
Interdisciplinary theory behind quantum computing
ISBN 978-1-4020-3283-7. "Quantum Information Science". Energy.gov. 2024-11-15. Retrieved 2025-08-06. Schlosshauer, Maximilian (2019-10-25). "Quantum decoherence". Physics
Quantum_information_science
German physicist (1932–2018)
University of Heidelberg. He is known for formalizing the theory of quantum decoherence. H. Dieter Zeh was born in Braunschweig and studied physics at the
H._Dieter_Zeh
Interaction of a quantum system with a classical observer
obscure the more exotic features of quantum mechanics that the system could in principle manifest. Quantum decoherence, as this effect is known, was first
Measurement in quantum mechanics
Measurement_in_quantum_mechanics
Theory of a quantum origin of consciousness
microtubule lattice might be suitable for quantum error correction, a means of resisting quantum decoherence. In 2009, Reimers et al. and McKemmish et
Orchestrated objective reduction
Orchestrated_objective_reduction
Hypothetical mechanisms by which gravitation can cause quantum decoherence
Gravitational decoherence is a term for hypothetical mechanisms by which gravitation can act on quantum mechanical systems to produce decoherence. Advocates
Gravitational_decoherence
Networks connecting quantum processors
operating quantum networks is to use optical networks and photon-based qubits. This is due to optical networks having a reduced chance of decoherence. Optical
Quantum_network
Subspace of a quantum system's Hilbert space that is invariant to non-unitary dynamics
A decoherence-free subspace (DFS) is a subspace of a quantum system's Hilbert space that is invariant to non-unitary dynamics. Alternatively stated, they
Decoherence-free_subspaces
Experimental technology level
enough to achieve quantum advantage. These processors, which are sensitive to their environment (noisy) and prone to quantum decoherence, are not yet capable
Noisy intermediate-scale quantum computing
Noisy_intermediate-scale_quantum_computing
Polish theoretical physicist (born 1951)
American theoretical physicist and a leading authority on quantum theory, especially decoherence and non-equilibrium dynamics of symmetry breaking and resulting
Wojciech_H._Zurek
Quantum measurement phenomenon
effect (physics) Quantum Darwinism Quantum decoherence Wavefunction collapse Zeno's paradoxes Facchi, P; Pascazio, S (2008-10-29). "Quantum Zeno dynamics:
Quantum_Zeno_effect
Mathematical tool in quantum physics
Similarly, in quantum computation, quantum information theory, open quantum systems, and other fields where state preparation is noisy and decoherence can occur
Density_matrix
Process in quantum computing
to protect quantum information from errors arising from decoherence and other sources of quantum noise. QEC schemes that employ codewords stabilized by
Quantum_error_correction
Quantum mechanical macroscopic object
The fragility of quantum effects in macroscopic objects may arise from rapid quantum decoherence. Researchers created the first quantum machine in 2009
Quantum_machine
Information held in the state of a quantum system
mechanics. QEC is used in quantum computing to protect quantum information from errors due to decoherence and other quantum noise. Quantum error correction is
Quantum_information
Interpretation of quantum mechanics
quantum theory. In the 1970s and 1980s, the theory of decoherence helped to explain the appearance of quasi-classical realities emerging from quantum
Copenhagen_interpretation
Fringe hypothesis
(12): 17–42. Georgiev, D. (2012). "Mind efforts, quantum Zeno effect and environmental decoherence". NeuroQuantology. 10 (3): 374–388. doi:10.14704/nq
Quantum_mind
Mechanism recovering classical behavior from a quantum system
a quantum system. It is a type of decoherence, and can contribute to loss of information in the system, even if no energy is exchanged. In a quantum superposition
Dephasing
Physics phenomenon
Kluwer. ISBN 0-7923-2549-4. Schlosshauer, Max (25 October 2019). "Quantum decoherence". Physics Reports. 831: 1–57. arXiv:1911.06282. Bibcode:2019PhR.
Quantum_entanglement
Use of the second law of thermodynamics to distinguish past from future
many-worlds interpretation of quantum mechanics). In either case, the wave function collapse always follows quantum decoherence, a process which is understood
Entropy_as_an_arrow_of_time
Swedish-American academic physicist (born 1967)
Review E, on quantum decoherence of neurons, concluded that decoherence is too rapid for Roger Penrose's orchestrated objective reduction ("quantum microtubule")
Max_Tegmark
Quantum mechanical system that interacts with a quantum-mechanical environment
is termed quantum dissipation, while loss of coherence is termed quantum decoherence. Due to the difficulty of determining the solutions to the master
Open_quantum_system
Interpretation of quantum mechanics
histories is used in combination with the insights about quantum decoherence. Quantum decoherence implies that irreversible macroscopic phenomena (hence
Consistent_histories
such as the superposition of states and wavefunction collapse or quantum decoherence, give rise to the reality we perceive? Another way of stating this
List of unsolved problems in physics
List_of_unsolved_problems_in_physics
Philosophical view that events are determined by prior events
the idea, because of quantum decoherence, that quantum indeterminacy can be ignored for most macroscopic events. Random quantum events "average out" in
Determinism
Description of gravity using discrete values
Dilaton Doubly special relativity Gravitational decoherence Gravitomagnetism Hawking radiation List of quantum gravity researchers Orders of magnitude (length)
Quantum_gravity
American scientist (1930–1982)
Everett's work received more credibility with the discovery of quantum decoherence in the 1970s and has received increased attention in recent decades
Hugh_Everett_III
Concept in physics of one-way time
possibility of a quantum algorithm that reverses a given quantum state through complex conjugation of the state. Note that quantum decoherence merely allows
Arrow_of_time
French physicist, Nobel laureate (born 1944)
well-suited to the testing of quantum decoherence and to the realization of quantum logic operations necessary for the treatment of quantum information. 1988: Einstein
Serge_Haroche
Proposed quantum computer implementation
eliminate the issue. One way to combat decoherence is to represent the quantum state in a new basis called the decoherence-free subspaces, or DFS., with basis
Trapped-ion_quantum_computer
statistics Plekton quantum computing qubit qutrit pure qubit state quantum dot Kane quantum computer quantum cryptography quantum decoherence quantum circuit universal
List of mathematical topics in quantum theory
List_of_mathematical_topics_in_quantum_theory
Quantum mechanical model
The quantum harmonic oscillator is the quantum-mechanical analog of the classical harmonic oscillator. Because an arbitrary smooth potential can usually
Quantum_harmonic_oscillator
Mathematical structures that allow quantum mechanics to be explained
mathematical formulations of quantum mechanics are those mathematical formalisms that permit a rigorous description of quantum mechanics. This mathematical
Mathematical formulation of quantum mechanics
Mathematical_formulation_of_quantum_mechanics
Interpretation of quantum mechanics
Philosophy of physics Quantum decoherence Quantum entanglement Quantum information Quantum Zeno effect Schrödinger's cat "On Quantum Mechanics". 2 March
Relational_quantum_mechanics
American philosopher
between science and religion. Her work has focused on the use of quantum decoherence to explain philosophical puzzles in physics. Crull majored in physics
Elise_Crull
English mathematician, mathematical physicist (born 1931)
Retrieved 7 October 2020. Tegmark, Max (2000). "The importance of quantum decoherence in brain processes". Physical Review E. 61 (4): 4194–4206. arXiv:quant-ph/9907009
Roger_Penrose
Basic circuit in quantum computing
In quantum computing and specifically the quantum circuit model of computation, a quantum logic gate (or simply quantum gate) is a basic quantum circuit
Quantum_logic_gate
Interpretation of quantum mechanics
for any situation in which the quantum potential is negligible, as noted by Bohm in 1952. Modern methods of decoherence are relevant to an analysis of
De_Broglie–Bohm_theory
Book by Roger Penrose
microtubule lattice might be suitable for quantum error correction, a means of resisting quantum decoherence. In 2007, Gregory S. Engel claimed that all
Shadows_of_the_Mind
Quantum algorithm for integer factorization
Assuming a quantum computer with a sufficient number of qubits could operate without succumbing to quantum noise and other quantum-decoherence phenomena
Shor's_algorithm
Quantum effect of uncertainty
unwanted environmental disturbances that affect quantum systems and cause decoherence. An isolated quantum system, such as a qubit, has a state that will
Quantum_noise
Hungarian and American mathematician and physicist (1903–1957)
development of quantum decoherence theories. Von Neumann first proposed a quantum logic in his 1932 treatise Mathematical Foundations of Quantum Mechanics
John_von_Neumann
Quantum computing implementation
operations are necessary, limiting the length of quantum computation possible before processor decoherence. The Heisenberg model of interactions, written
Superconducting quantum computing
Superconducting_quantum_computing
Principle of quantum mechanics
Quantum superposition is a fundamental principle of quantum mechanics that states that linear combinations of solutions to the Schrödinger equation are
Quantum_superposition
156-qubit quantum processor by IBM
about 50 instructions until decoherence occurs on average. Noisy intermediate-scale quantum computing Superconducting quantum computing Transmon "IBM Debuts
IBM_Heron
Italian physicist
including quantum teleportation and quantum cryptography. A significant part of his research concerns the control and mitigation of quantum decoherence, the
David_Vitali
Approximation or recovery of classical mechanics in certain theories
his 1942 PhD dissertation. (Further see quantum decoherence.) One simple way to compare classical to quantum mechanics is to consider the time-evolution
Classical_limit
Book by Roland Omnès
progress have taken place in two fields: quantum decoherence and the consistent histories approach to quantum mechanics. The consistent histories approach
Quantum_Philosophy
2013 film by James Ward Byrkit
Hugh retrieves his brother's book from his car, which deals with quantum decoherence. They speculate that the comet has created mirror realities, one
Coherence_(film)
Notation for conserved quantities in physics and chemistry
In quantum physics and chemistry, quantum numbers are quantities that characterize the possible states of the system. To fully specify the state of the
Quantum_number
Physics experiment in quantum mechanics
A delayed-choice quantum eraser experiment is an elaboration on the quantum eraser experiment that incorporates concepts considered in John Archibald Wheeler's
Delayed-choice_quantum_eraser
New radar technology
entanglement will be lost due to quantum decoherence as the microwaves travel to the target objects and back, enough quantum correlations will still remain
Quantum_radar
Physical phenomenon
the quantum state. "The ability of quantum information to flow through a classical channel [...], surviving decoherence, is [...] the basis of quantum teleportation
Quantum_teleportation
Non-mathematical introduction
Quantum mechanics is the study of matter and matter's interactions with energy on the scale of atomic and subatomic particles. By contrast, classical
Introduction to quantum mechanics
Introduction_to_quantum_mechanics
American-Brazilian-British scientist (1917–1992)
physicists of the 20th century and who contributed unorthodox ideas to quantum theory, neuropsychology and the philosophy of mind. Among his many contributions
David_Bohm
Theory in the philosophy of mind
macroscopic scale. (See quantum mind.) However, Max Tegmark has argued that classical and quantum calculations show that quantum decoherence effects do not play
Interactionism (philosophy of mind)
Interactionism_(philosophy_of_mind)
Mathematical rule for inverting probabilities
Rüdiger (2012). "Bayesian conditioning, the reflection principle, and quantum decoherence". In Ben-Menahem, Yemima; Hemmo, Meir (eds.). Probability in Physics
Bayes'_theorem
Property of computational resources needed
circuits, and that decoherence affects magic in complex ways, either increasing or decreasing it. The problem of finding quantum states with maximal
Magic_(quantum_information)
Quantum mechanics taking into account particles near or at the speed of light
(2000). Relativistic Quantum Measurement and Decoherence. Springer. ISBN 978-3-540-41061-4. Relativistic quantum mechanics. Shepherd, P.J. (2013). A Course
Relativistic quantum mechanics
Relativistic_quantum_mechanics
Proposed spin-based quantum computer implementation
the model, one of which is introduction of decoherence. In particular we have the problem of an open quantum system interacting with a macroscopic number
Nuclear magnetic resonance quantum computer
Nuclear_magnetic_resonance_quantum_computer
Physics experiment
In quantum mechanics, a quantum eraser experiment is an interferometer experiment that demonstrates several fundamental aspects of quantum mechanics,
Quantum_eraser_experiment
French author
was instrumental in developing consistent histories and quantum decoherence approaches in quantum mechanics. He received the Paul-Langevin Prize in 1959
Roland_Omnès
1932 book by John von Neumann
function. However Wigner rejected this idea after the formalism of quantum decoherence was developed. Hugh Everett III developed the many-worlds interpretation
Mathematical Foundations of Quantum Mechanics
Mathematical_Foundations_of_Quantum_Mechanics
Number measuring the chance an event occurs
modern interpretations of the statistical mechanics of measurement, quantum decoherence is invoked to account for the appearance of subjectively probabilistic
Probability
This is a list of notable textbooks on classical mechanics and quantum mechanics arranged according to level and surnames of the authors in alphabetical
List of textbooks on classical mechanics and quantum mechanics
List_of_textbooks_on_classical_mechanics_and_quantum_mechanics
Computational benchmark
physical quantum computer or dealing with decoherence and noise. Since quantum information is a generalization of classical information, quantum computers
Quantum_supremacy
Different states of quantum systems
A quantum mechanical system or particle that is bound—that is, confined spatially—can only take on certain discrete values of energy, called energy levels
Energy_level
Quantum mechanical waves describing matter
non-destructively. Quantum reflection uses matter wave behavior to explain grazing angle atomic reflection, the basis of some atomic mirrors. Quantum decoherence measurements
Matter_wave
Classification of quantum processors
for reducing decoherence in quantum computer memory, Phys. Rev. A 52, 2493, 1995. Nielsen, Michael A.; Chuang, Isaac L. (2010-12-09). Quantum Computation
Fault tolerant quantum computing
Fault_tolerant_quantum_computing
Mathematical description of quantum state
In quantum mechanics, a wave function (or wavefunction) is a mathematical description of the quantum state of an isolated quantum system. The most common
Wave_function
Propagation of information or matter faster than the speed of light
sees. Wavefunction collapse can be viewed as an epiphenomenon of quantum decoherence, which in turn is nothing more than an effect of the underlying local
Faster-than-light
Quantum analog of probabilistic automata
In quantum computing, quantum finite automata (QFA) or quantum state machines are a quantum analog of probabilistic automata or a Markov decision process
Quantum_finite_automaton
Relationship between the concepts of thermodynamic entropy and information entropy
Thermodynamics Statistical mechanics Information theory Quantum entanglement Quantum decoherence Fluctuation theorem Black hole entropy Black hole information
Entropy in thermodynamics and information theory
Entropy_in_thermodynamics_and_information_theory
Quantum mechanical phenomenon
In physics, quantum tunnelling, barrier penetration, or simply tunnelling is a quantum mechanical phenomenon in which an object such as an electron or
Quantum_tunnelling
Quantum information paradigm
noise arising from interaction with the environment, leading to quantum decoherence. Even though entanglement itself may not survive, the residual correlation
Quantum_illumination
topological quantum computation as a method for dealing with the problem of decoherence. Daniel Loss and David DiVincenzo propose the Loss-DiVincenzo quantum computer
Timeline of quantum computing and communication
Timeline_of_quantum_computing_and_communication
Basic unit of quantum information
In quantum computing, a qubit (/ˈkjuːbɪt/) or quantum bit is a basic unit of quantum information, the quantum version of the classic binary bit. A qubit
Qubit
Deviations from local realism
theoretical physics, quantum nonlocality refers to the phenomenon by which the measurement statistics of a multipartite quantum system do not allow an
Quantum_nonlocality
Philosophical theory
However, Max Tegmark has argued that classical and quantum calculations show that quantum decoherence effects do not play a role in brain activity. Yet
Mind–body_dualism
Research facility in the United States
of quantum annealing experiments. Researchers also are working to manage quantum decoherence, the phenomenon that degrades the performance of quantum information
USC-Lockheed Martin Quantum Computing Center
USC-Lockheed_Martin_Quantum_Computing_Center
Iconic quantum mechanics problem
increasing complexity. His model coincides with the strategy of modern quantum decoherence theory. The Renninger negative-result experiment from the 1960s is
Mott_problem
Calculation rule in quantum mechanics
The Born rule is a postulate of quantum mechanics that gives the probability that a measurement of a quantum system will yield a given result. In one commonly
Born_rule
Fact that observing a situation changes it
effect occurs in quantum mechanics, as demonstrated by the double-slit experiment. Physicists have found that observation of quantum phenomena by a detector
Observer_effect_(physics)
Mathematical entity to describe the probability of each possible measurement on a system
In quantum physics, a quantum state is a mathematical entity that represents a physical system. Quantum mechanics specifies the construction, evolution
Quantum_state
Interdisciplinary study of quantum physics and sociology
the social domain. The most common criticism is that due to quantum decoherence, quantum effects are filtered out at the macroscopic level, so cannot
Quantum_social_science
Cryptography based on quantum mechanical phenomena
Quantum cryptography is the science of exploiting quantum mechanical properties such as quantum entanglement, measurement disturbance, no-cloning theorem
Quantum_cryptography
Interpretation of quantum mechanics
philosophy of physics, QBism (pronounced "cubism") is an interpretation of quantum mechanics that takes an agent's actions and experiences as the central
QBism
Concept in quantum mechanics
other particle. Additional problems related to decoherence arise when the observer is modeled as a quantum system. The Copenhagen interpretation, which
Observer_(quantum_physics)
Predecessor to modern quantum mechanics (1900–1925)
The old quantum theory is a collection of results from the years 1900–1925, which predate modern quantum mechanics. The theory was never complete or self-consistent
Old_quantum_theory
Lowest possible energy of a quantum system or field
is the lowest possible energy that a quantum mechanical system may have. Unlike in classical mechanics, quantum systems constantly fluctuate in their
Zero-point_energy
European undersea neutrino detector
investigating quantum gravity by studying neutrino oscillations. The study aimed to detect signs of decoherence, a potential effect of quantum gravity. However
KM3NeT
QUANTUM DECOHERENCE
QUANTUM DECOHERENCE
Boy/Male
Hindu, Indian
Calm
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from any of several places in France deriving their names from the Gallo-Roman personal name Quintus, meaning ‘fifth(-born)’ + the locative suffix -acum. The earliest bearers of the name in England were from Cuinchy in Pas-de-Calais, but other stocks may be from Quincy-sous-Sénard in Seine-et-Oise or Quincy-Voisins in Seine-et-Marne.The American Quincy family were established in MA by Edmund Quincy in 1633. Fifth in descent was Josiah Quincy (1744–75), a leading patriot, who was sent to England to argue the colonists’ case in 1774. His son Josiah (1772–1864) was a powerful opponent of slavery, president of Harvard, and mayor of Boston, a post also held by several of his descendants. The traditional pronunciation is “Quinzyâ€.
Surname or Lastname
English
English : from the personal name Horace, Latin Horatius, a Roman family name of unknown origin, associated chiefly with the name of the poet Quintus Horatius Flaccus (65–8 bc).
Girl/Female
Biblical
Fourth.
Boy/Male
Danish, Finnish, French, German, Latin, Shakespearean, Swedish
Born Fifth
Surname or Lastname
South German
South German : occupational name for an official in charge of the legal auction of property confiscated in default of a fine; such a sale was known in Middle High German as a gant (from Italian incanto, a derivative of Late Latin inquantare ‘to auction’, from the phrase In quantum? ‘To how much (is the price raised)?’).German : metonymic occupational name for a cooper, from Middle High German ganter, kanter ‘barrel rack’.German : variant of Gander 3.English : occupational name for a glover, from Old French gantier, an agent derivative of gant ‘glove’ (see Gant).
Surname or Lastname
English
English : nickname from Middle English cointe, quointe ‘known’ (via Old French, from Latin cognitus ‘known’). The Middle English word was used in various senses, any of which could have given rise to the surname: ‘cunning’, ‘crafty’, ‘knowledgeable’ (especially about dress, hence ‘elegant’), ‘attractive’. The sense development continued with ‘odd’ or ‘unusual’, the normal meaning of the modern English word ‘quaint’.German and Dutch : variant of Quandt.
Boy/Male
Latin Biblical
Born fourth.
Male
English
English surname transferred to forename use, derived from the Norman baronial name Cuinchy, a derivative of Roman Quintus, QUINCY means "fifth."
Biblical
fourth
QUANTUM DECOHERENCE
QUANTUM DECOHERENCE
Boy/Male
Hindu
This was the name of pitamaha visma in holy mahabharata
Girl/Female
Hindu, Indian
Money; Goddess Lakshmi
Girl/Female
Scandinavian
Hannah, meaning favor, grace.
Girl/Female
Latin
In classical mythology, Lavinia was the daughter of King Latinus and the wife of Trojan hero...
Boy/Male
Hindu
Coral, Strong, Powerful
Boy/Male
Arabic, Muslim
One who Paces; Trots or Walks Fast
Boy/Male
American, Australian, French, Irish
Wealthy
Girl/Female
Australian, Irish
Good Health
Boy/Male
American, Australian, British, English
Short Form of Name Starting with Des
Surname or Lastname
English
English : habitational name from any of the many places called Crawley, named with Old English crÄwe ‘crow’ + lÄ“ah ‘woodland clearing’. Compare Crowley.Probably also a reduced form of Irish McCrawley, an Anglicization of Gaelic Mac Raghallaigh ‘son of Raghallach’, also Anglicized as Magreely.
QUANTUM DECOHERENCE
QUANTUM DECOHERENCE
QUANTUM DECOHERENCE
QUANTUM DECOHERENCE
QUANTUM DECOHERENCE
n.
A function involving the coefficients and the variables of a quantic, and such that when the quantic is lineally transformed the same function of the new variables and coefficients shall be equal to the old function multiplied by a factor. An invariant is a like function involving only the coefficients of the quantic.
n.
A quantic of the sixth degree.
n.
A quantic of the eighth degree.
n.
A homogeneous algebraic function of two or more variables, in general containing only positive integral powers of the variables, and called quadric, cubic, quartic, etc., according as it is of the second, third, fourth, fifth, or a higher degree. These are further called binary, ternary, quaternary, etc., according as they contain two, three, four, or more variables; thus, the quantic / is a binary cubic.
a.
Of, pertaining to, or in the manner of, the Roman general, Quintus Fabius Maximus Verrucosus; cautious; dilatory; avoiding a decisive contest.
pl.
of Quantum
n.
A quantic of the second degree. See Quantic.
n.
A fanciful, odd, or extravagant notion; a quant fancy; an unnatural or affected conception; a witty thought or turn of expression; a fanciful device; a whim; a quip.
n.
A quantic of the fourth degree. See Quantic.
n.
A definite portion of a manifoldness, limited by a mark or by a boundary.
n.
Part or proportion; quota.
n.
A quantic of the seventh degree.
n.
One of the variables of a quantic as distinguished from a coefficient.
n.
A quantic of the fifth degree. See Quantic.
n.
A punting pole with a broad flange near the end to prevent it from sinking into the mud; a setting pole.
n.
Quantity; amount.