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Quantum lattice model
The quantum clock model is a quantum lattice model. It is a generalisation of the transverse-field Ising model . It is defined on a lattice with N {\displaystyle
Quantum_clock_model
Mathematical model of magnetism
The transverse field Ising model is a quantum version of the classical Ising model. It features a lattice with nearest neighbour interactions determined
Transverse-field_Ising_model
Instrument for measuring, keeping or indicating time
A clock or chronometer is a device that measures and displays time. The clock is one of the oldest human inventions, meeting the need to measure intervals
Clock
Conceptual conflict between general relativity and quantum mechanics
a clock and ask relational questions. These ideas, where the clock is also quantum mechanical, have actually led to a new interpretation of quantum mechanics
Problem_of_time
gravitational waves." In his paper, "Quantum mechanics, matter waves and moving clocks", Müller has suggested that "[The model] has also given rise to a fair
Matter_wave_clock
Physics phenomenon
Quantum entanglement is the phenomenon in which the quantum state of each particle in a group cannot be described independently of the state of the others
Quantum_entanglement
Form of quantum computing
quantum computation is a form of quantum computing. Unlike methods of quantum computation such as the adiabatic, measurement-based and circuit model where
Hamiltonian quantum computation
Hamiltonian_quantum_computation
Networks connecting quantum processors
modeling quantum systems. Networked quantum computing or distributed quantum computing works by linking multiple quantum processors through a quantum
Quantum_network
Intrinsic quantum property of particles
Spin is quantized, and accurate models for the interaction with spin require relativistic quantum mechanics or quantum field theory. The existence of electron
Spin_(physics)
Theory of quantum gravity merging quantum mechanics and general relativity
Loop quantum gravity (LQG) is a theory of quantum gravity that incorporates matter of the Standard Model into the framework established for the intrinsic
Loop_quantum_gravity
Clock that monitors the resonant frequency of atoms
reported a record-setting optical atomic clock based on a trapped aluminium ion. This "quantum logic" clock achieves a systematic uncertainty corresponding
Atomic_clock
Computational benchmark
In quantum computing, quantum supremacy or quantum advantage is the goal of demonstrating that a programmable quantum computer can solve a problem that
Quantum_supremacy
Property of certain dynamical systems
8-vertex model Ice-type model of Lieb Gaudin model Ising model in 1- and 2-dimensions ZN model (or clock model) in 1- and 2-dimensions Quantum Heisenberg
Integrable_system
Type of cellular automaton
Quantum dot cellular automata (QDCA, sometimes referred to simply as quantum cellular automata, or QCA) are a proposed improvement on conventional computer
Quantum dot cellular automaton
Quantum_dot_cellular_automaton
Sub-field of quantum physics and optics
Quantum optics is a branch of atomic, molecular, and optical physics and quantum chemistry that studies the behavior of photons (individual quanta of light)
Quantum_optics
Frequency at which a CPU chip or core is operating
In computing, clock rate or clock speed is the frequency at which the clock generator of a processor can generate pulses used to synchronize the operations
Clock_rate
Model in statistical mechanics generalizing the Ising model
or "clock model", which was suggested to him by his advisor, Cyril Domb. The four-state Potts model is sometimes known as the Ashkin–Teller model, after
Potts_model
Subfield of computer science and mathematics
states (0 or 1), quantum computation uses qubits (quantum bits), which can be in superpositions of states. A theoretical model is the quantum Turing machine
Theoretical_computer_science
Two dimensional conformal field theory
transition of the one-dimensional quantum three-state Potts model. The Hamiltonian of the quantum three-state Potts model is given by H = − J ( ∑ ⟨ i , j
Critical three-state Potts model
Critical_three-state_Potts_model
{\displaystyle Z_{N}} model (also known as the clock model) is a simplified statistical mechanical spin model. It is a generalization of the Ising model. Although
ZN_model
Effect that limits performance of advanced atomic clocks
atomic clock and places new and stringent demands on LO performance. For any given interrogation protocol, the effect can be calculated using a quantum-mechanical
Dick_effect
Sculptural clock in Cambridge, England
2037600; 0.1176400 The Corpus Clock, also known as the Chronophage or the Grasshopper clock, is a large sculptural clock on the outside of the Taylor Library
Corpus_Clock
processing units List of quantum processors Apple silicon The 4004's original goal was to equal the clock rate of the IBM 1620 Model I (1 MHz); this was not
List_of_Intel_processors
Dimensionless number that quantifies the strength of the electromagnetic interaction
Standard Model approaches that of the other two fundamental interactions, a feature important for grand unification theories. In perturbative quantum electrodynamics
Fine-structure_constant
Information held in the state of a quantum system
Quantum information is the information of the state of a quantum system. It is the basic entity of study in quantum information science, and can be manipulated
Quantum_information
Theories, models and concepts that go back to the quantum hypothesis of Max Planck
atomic clocks to measure precise time differences and therefore determine a user's location. Many electronic devices operate using the effect of quantum tunneling
Applications of quantum mechanics
Applications_of_quantum_mechanics
Physical phenomenon
Quantum teleportation is a technique for transferring quantum information from a sender at one location to a receiver some distance away. While teleportation
Quantum_teleportation
Formulation of general relativity
In physics, canonical quantum gravity is an attempt to quantize the canonical formulation of general relativity (or canonical gravity). It is a Hamiltonian
Canonical_quantum_gravity
Hypothetical travel into the past or future
mouths of a wormhole with such an induced clock difference could not be brought together without inducing quantum field and gravitational effects that would
Time_travel
Measured time difference as explained by relativity theory
Time dilation is the difference in elapsed time as measured by two clocks, either because of a relative velocity, a consequence of special relativity,
Time_dilation
This glossary of quantum computing is a list of definitions of terms and concepts used in quantum computing, its sub-disciplines, and related fields. Bacon–Shor
Glossary_of_quantum_computing
advancing techniques in modelling fluid dynamics and soft matter, developing mathematics for quantum computing, applying quantum field theory and action
List of unsolved problems in physics
List_of_unsolved_problems_in_physics
64-bit microprocessor developed in 1996
implements the MIPS IV instruction set architecture (ISA) developed by Quantum Effect Design (QED) in 1996. The project was funded by MIPS Technologies
R5000
Theory of gravitation as curved spacetime
dynamical triangulations, causal sets, twistor models or the path integral based models of quantum cosmology. All candidate theories still have major
General_relativity
in quantum computing, sensing, and metrology with trapped atoms. Demonstrating that the single-ion nuclear clock under a specific choice of clock states
Andrei_Derevianko
Interpretation of quantum mechanics
particular case of quantum processes described by the theory—for which it yields the same quantum predictions as other interpretations of quantum mechanics. The
De_Broglie–Bohm_theory
American scientist
measurements, including molecular lattice clocks, ultracold molecule photodissociation, as well as cooling and quantum state manipulation techniques for diatomic
Tanya_Zelevinsky
Topics referred to by the same term
apparent motion of the fixed stars Kicked rotator, a prototype model for chaos and quantum chaos studies Polarization rotator, an optical device that rotates
Rotator
Continuous progression from past to future
independent clocks. The problem of time consists of reconciling these two theories. As of 2026, there is no generally accepted theory of quantum general relativity
Time
Symmetry of spatially mirrored systems
{\hat {\mathcal {P}}}\phi =-\phi ~.} These are useful in quantum mechanics, however in quantum mechanics states need not transform under actual representations
Parity_(physics)
Theory of gravity
toward the resolution of incompatibilities between general relativity and quantum mechanics. Shape dynamics is dynamically equivalent to the canonical formulation
Shape_dynamics
Propagation of information or matter faster than the speed of light
Retrieved 2011-09-26. Mavromatos, Nick E. (15 August 2002). "Testing models for quantum gravity". CERN Courier. Archived from the original on 23 April 2011
Faster-than-light
Hardware cache of a central processing unit
the introduction of SDRAM and the growing disparity between bus clock rates and CPU clock rates, which caused on-motherboard cache to be only slightly faster
CPU_cache
Property of particles related to spin
pieces of the Standard Model of physics are non-chiral, which is traceable to anomaly cancellation in chiral theories. Quantum chromodynamics is an example
Chirality_(physics)
Concept in computer science
closely linked to quantum computing, where the principles of quantum mechanics inherently ensure reversibility (as long as quantum states are not measured
Reversible_computing
Hypothetical topological feature of spacetime
mouths of a wormhole with such an induced clock difference could not be brought together without inducing quantum field and gravitational effects that would
Wormhole
Atoms kept at temperatures close to absolute zero
atom systems as quantum simulators to study the physics of other systems, including the unitary Fermi gas and the Ising and Hubbard models. Ultracold atoms
Ultracold_atom
Possible fate of the universe
than to a single finite mechanism, running down like a clock, and stopping for ever. The clock's example shows how Kelvin was unsure whether the universe
Heat_death_of_the_universe
Twenty-first letter in the Greek alphabet
letter phi is commonly used in physics to represent wave functions in quantum mechanics, such as in the Schrödinger equation and bra–ket notation: ⟨
Phi
Series of public disputes between physicists Niels Bohr and Albert Einstein
The Bohr–Einstein debates were a series of public disputes about quantum mechanics between Albert Einstein and Niels Bohr. Their debates are remembered
Bohr–Einstein_debates
Fundamental quantity in physics
Atomic Clocks at NIST Archived 2009-02-14 at the Wayback Machine Slashdot (25 Oct 2021) An Ultra-Precise Clock Shows How To Link the Quantum World With
Time_in_physics
Watchmen character
Doomsday Clock Trailer". Screen Rant. Retrieved December 29, 2019. The Amazing Story of Quantum Mechanics: A Maths Free Exploration Of Quantum Mechanics
Doctor_Manhattan
Field equation from quantum gravity
time was also proposed as arising from quantum correlations between an evolving system and a reference quantum clock system, the concept of system-time entanglement
Wheeler–DeWitt_equation
Secure communication method
Quantum key distribution (QKD) is a secure communication method that implements a cryptographic protocol based on the laws of quantum mechanics, specifically
Quantum_key_distribution
Approach to quantum gravity using discrete spacetime
Ising models; (UCSD preprint May 1993); (Quantum Dynamics) D.A. Meyer; Why do clocks tick?; General Relativity and Gravitation 25 9:893-900;; (Quantum Dynamics)
Causal_sets
Series of GPUs by Nvidia
clock 8.8 Gtexels/s fillrate 128/512 MB 1000 MHz DDR2 memory with a 128-bit memory bus 16.0 GB/s memory bandwidth Supports DirectX 10, Shader Model 4
GeForce_9_series
Proposed theories of gravity
theories of gravity, which do not involve quantum mechanics or force unification. Theories using the principles of quantum mechanics resulting in quantized gravity
Alternatives to general relativity
Alternatives_to_general_relativity
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
1922 physical experiment demonstrating that atomic spin is quantized
In quantum physics, the Stern–Gerlach experiment demonstrated that the spatial orientation of angular momentum is quantized. Thus an atomic-scale system
Stern–Gerlach_experiment
Indication of topological symmetry groups to topological condensed matter
{Z} } topological invariant. The quantum spin Hall effect ( d = 2 {\displaystyle d=2} ) described by Kane–Mele model is an example of AII class, with
Periodic table of topological insulators and topological superconductors
Periodic_table_of_topological_insulators_and_topological_superconductors
French physicist (1892–1987)
of wave mechanics, in opposition to the wholly probabilistic models which dominate quantum mechanical theory; it was refined by David Bohm in the 1950s
Louis_de_Broglie
System in which no randomness is involved in determining its future states
system at a given point in time may be difficult to describe explicitly. In quantum mechanics, the Schrödinger equation, which describes the continuous time
Deterministic_system
Future Indian satellite
atomic clocks, travelling wave tube amplifiers (TWTA) and a quantum communication suite (QuTDS). 35 new technologies, ranging from atomic clocks to an
TDS-01
American computer laboratory
2014). "Boffin benchmark battle after D-Wave quantum kit crawls in test: D-Wave protests methods used to clock DW2 100 times slower than classical computers"
Quantum Artificial Intelligence Lab
Quantum_Artificial_Intelligence_Lab
Structure that repeats in time; a novel type or phase of non-equilibrium matter
In condensed matter physics, a time crystal is a quantum system of particles whose lowest-energy state is one in which the particles are in repetitive
Time_crystal
Foundational principle in quantum physics
known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics. It states that there is a limit to the precision with which
Uncertainty_principle
Albert Einstein's hypothetical situations to argue scientific points
anticipating the phenomenon known as quantum entanglement. A thought experiment is a logical argument or mental model cast within the context of an imaginary
Einstein's thought experiments
Einstein's_thought_experiments
Digital circuit that produces sums from inputs
on a Quantum Computer". arXiv:quant-ph/0008033. Ruiz-Perez, Lidia; Juan Carlos, Garcia-Escartin (2 May 2017). "Quantum arithmetic with the quantum Fourier
Adder_(electronics)
Method of CPU communication
management Boolean Digital Analog Quantum Switch Power management PMU APM ACPI Dynamic frequency scaling Dynamic voltage scaling Clock gating Performance per watt
Memory-mapped I/O and port-mapped I/O
Memory-mapped_I/O_and_port-mapped_I/O
Award
The Micius Quantum Prize is awarded every year since 2018 "for promoting the quantum information science and technology research". The recipients are
Micius_Quantum_Prize
American physicist
D. in physics in 2011, and her doctoral thesis introduced a quantum-enhanced atomic clock and was recognized by the Hertz Foundation with a Doctoral Thesis
Monika_Schleier-Smith
Introductory article
transformations. The culmination of these efforts is the Standard Model, a quantum field theory that accurately predicts all of the fundamental interactions
Introduction_to_gauge_theory
Theorem in quantum computing
"Continuous groups of transversal gates for quantum error correcting codes from finite clock reference frames". Quantum. 4: 245. arXiv:1902.07725. Bibcode:2020Quant
Eastin–Knill_theorem
Experiments probing the accuracy of special relativity's predictions
concerning various models of Quantum gravity in recent years, deviations of Lorentz invariance (possibly following from those models) are again the target of
Tests_of_special_relativity
Form of particle interferometry
in atomic clocks and in the SI definition of the second. Most precision atomic measurements, such as modern atom interferometers and quantum logic gates
Ramsey_interferometry
Interpretation of quantum mechanics
Relational quantum mechanics (RQM) is an interpretation of quantum mechanics which treats the state of a quantum system as being relational, that is,
Relational_quantum_mechanics
Cryptographic device
Researchers also used the photoelectric effect, involving a beam splitter, other quantum phenomena, and even nuclear decay (due to practical considerations the
Hardware random number generator
Hardware_random_number_generator
Possible future digital logic technologies
As CMOS transistor dimensions were shrunk the clock speeds also increased. Since about 2004 CMOS CPU clock speeds have leveled off at about 3.5 GHz. CMOS
Beyond_CMOS
Security-related instruction code processor extension
Intel issued a statement, stating that this attack was outside the threat model of SGX, that they cannot guarantee that code run by the user comes from
Software_Guard_Extensions
Computer component
hit time in cycles. If a TLB hit takes 1 clock cycle, a miss takes 30 clock cycles, a memory read takes 30 clock cycles, and the miss rate is 1%, the effective
Translation_lookaside_buffer
Smallest unit of a chemical element
represent closed and filled quantum shells. These quantum shells correspond to a set of energy levels within the shell model of the nucleus; filled shells
Atom
Formulation of quantum mechanics
logically consistent formulation of quantum mechanics. Its account of quantum jumps supplanted the Bohr model's electron orbits. It did so by interpreting
Matrix_mechanics
Spin model on a planar lattice
genus 1 case, this model involves high genus theta functions, for which the theory is less well-developed. The related chiral clock model, which was introduced
Chiral_Potts_model
Theory of interwoven space and time by Albert Einstein
a clock. Moving clocks run slower. Two events measured at the same time on a stationary clock occur at different times if measured on moving clocks. At
Special_relativity
Timing oscillator
microelectromechanical structures that define stable frequencies. MEMS clock generators are MEMS timing devices with multiple outputs for systems that
Microelectromechanical system oscillator
Microelectromechanical_system_oscillator
Comparison of a wide range of timescales
than a second. However, the Planck time is not a quantum of time, as both general relativity and quantum mechanics treat time as continuous. The largest
Orders_of_magnitude_(time)
Hypothetical FTL transportation by warping space
relativity does not incorporate quantum mechanics. Some physicists have presented arguments to suggest that a theory of quantum gravity (which would incorporate
Alcubierre_drive
propose interpretations of quantum mechanics. They vary in how many physicists accept or reject them. An interpretation of quantum mechanics is a conceptual
Minority interpretations of quantum mechanics
Minority_interpretations_of_quantum_mechanics
Thought experiment in special relativity
stationary and synchronous clocks that are placed at points A and B, if the clock at A is moved along the line AB and stops at B, the clock that moved from A would
Twin_paradox
Combinational digital circuit
next clock, are allowed to propagate through the ALU and to the destination register while the CPU waits for the next clock. When the next clock arrives
Arithmetic_logic_unit
Metric for a quantum computer's capabilities
logical error rates, clock speed, and number of reliable qubits. The quantities included in rQOPS can be measured in all quantum computer architectures
RQOPS
Central computer component that executes instructions
the quantum computer, as well as to expand the use of parallelism and other methods that extend the usefulness of the classical von Neumann model. The
Central_processing_unit
German-born theoretical physicist (1879–1955)
Einstein (1905d). Major, Fouad G. (2007). The quantum beat: principles and applications of atomic clocks (2nd ed.). Springer. p. 142. ISBN 978-0-387-69533-4
Albert_Einstein
Retrieved May 19, 2021. Major, Fouad G. (1998). The Quantum Beat: The Physical Principles of Atomic Clocks. New York, NY: Springer. ISBN 978-0-387-98301-1
History of timekeeping devices
History_of_timekeeping_devices
Italian theoretical physicist and writer (born 1956)
and in Caldeira-Leggett models used in quantum dissipation. In 1994, Rovelli introduced the relational interpretation of quantum mechanics, based on the
Carlo_Rovelli
Two interrelated physics theories by Albert Einstein
experimentalists in the new fields of atomic physics, nuclear physics, and quantum mechanics. By comparison, general relativity did not appear to be as useful
Theory_of_relativity
Force to transfer electrons between metals
complete understanding of phenomena such as work functions evolved based upon quantum mechanics. For many years after the discovery of batteries there was debate
Contact_tension
model inspired by artificial life and biological systems Quantum counting algorithm: estimates the number of marked items in a search space Quantum Fourier
List_of_algorithms
Problems with central processing unit design
microarchitectures when the next instruction cannot execute in the following clock cycle, and can potentially lead to incorrect computation results. Three
Hazard (computer architecture)
Hazard_(computer_architecture)
Mechanism for regulating the speed of clocks
Shortt-Synchronome clock achieved accuracy of about one second per year before it was superseded as a time standard by the quartz clock in the 1930s. Pendulums
Pendulum
QUANTUM CLOCK-MODEL
QUANTUM CLOCK-MODEL
Girl/Female
Muslim
Clock
Surname or Lastname
English
English : see Cleek.Possibly an Americanized spelling of German Klick, Jewish Glick, or German and Jewish Glück (see Gluck).
Boy/Male
Danish, Finnish, French, German, Latin, Shakespearean, Swedish
Born Fifth
Boy/Male
Biblical Hebrew
A flock.
Boy/Male
Latin Biblical
Born fourth.
Surname or Lastname
English
English : from a Middle English personal name Clac, which is from Old English Clacc or the Old Norse cognate Klakkr. As a personal name this is from a word meaning ‘lump’ and may have been used as a nickname for a large or thickset man. Reaney suggests that it could also be from clacker ‘chatterer’.
Girl/Female
Biblical
Fourth.
Surname or Lastname
English
English : topographic name for someone who lived on a small plot of land, from Middle English plocke ‘small piece of ground’.Americanized spelling of German Ploch.Variant of German Block.
Girl/Female
Arabic, Muslim
Clock
Surname or Lastname
English
English : metonymic occupational name for a locksmith, from Middle English, Old English loc ‘lock’, ‘fastening’.English : topographic name for someone who lived near an enclosure, a place that could be locked, Middle English loke, Old English loca (a derivative of loc as in 1). Middle English loke also came to be used to denote a barrier, in particular a barrier on a river which could be opened and closed at will, and, by extension, a bridge. The surname may thus also have been a metonymic occupational name for a lock-keeper.English, Dutch, and German : nickname for a person with fine hair, or curly hair, from Middle English loc, Middle High German lock(e) ‘lock (of hair)’, ‘curl’.Americanized spelling of German Loch.
Surname or Lastname
Americanized spelling of German Krock.English
Americanized spelling of German Krock.English : perhaps a metonymic occupational name for a potter, from Middle English crock ‘pot’.
Surname or Lastname
English
English : of uncertain origin; possibly a nickname for someone with thick curly hair, from Old French floc ‘stable of wool’. Alternatively, it may be a metonymic occupational name for a shepherd, from Old English flocc ‘herd’, ‘company’.German : unexplained.German (Flöck) : variant of Flück (see Fluck), or from a pet form of a personal name formed with Old Saxon flÅd ‘flood’.
Boy/Male
British, English, Irish
Woods; Fortified Place; Bright; Radiant
Boy/Male
Indian, Malayalam
Clock
Girl/Female
Arabic
Lock; Awesome
Boy/Male
Hindu, Indian
Calm
Biblical
fourth
Boy/Male
Gaelic
Little cloak.
Surname or Lastname
German and Dutch
German and Dutch : from Middle High German bloch, Middle Dutch blok ‘block of wood’, ‘stocks’. The surname probably originated as a nickname for a large, lumpish man, or perhaps as a nickname for a persistent lawbreaker who found himself often in the stocks.English : possibly a metonymic occupational name for someone who blocks, as in shoemaking and bookbinding, from Middle English blok ‘block’.Jewish (Ashkenazic) : Americanized spelling of Bloch (see Vlach).Adriaen Coertsz Block was a Dutch-born merchant-explorer who traded along the CT coast and Long Island shortly after Hudson’s voyage to the region in 1609. Block Island, between the north fork of Long Island and RI, which he used as a base of operations, is named after him.
Biblical
a flock
QUANTUM CLOCK-MODEL
QUANTUM CLOCK-MODEL
Boy/Male
Tamil
Samarjith | ஸமரஜீத
Winner of the battle, Victorious in war or Lord Vishnu, One who has conquered lust
Boy/Male
Bengali, Indian
Nation of Love Lotus
Boy/Male
Arabic, Muslim
Counsellor of the Truth (Allah)
Boy/Male
Hindu
Imagined, Creative
Biblical
named; marveling; desolation;distinction, elevated;
Girl/Female
African
Asked for.
Girl/Female
Hebrew
Protected.
Boy/Male
Hindu, Indian, Marathi, Sanskrit
A Friend of the Gods
Male
Arthurian
, son of Belinans.
Girl/Female
Hindu, Indian, Tamil
Beautiful
QUANTUM CLOCK-MODEL
QUANTUM CLOCK-MODEL
QUANTUM CLOCK-MODEL
QUANTUM CLOCK-MODEL
QUANTUM CLOCK-MODEL
n.
To shape on, or stamp with, a block; as, to block a hat.
v. t.
To fasten in or out, or to make secure by means of, or as with, locks; to confine, or to shut in or out -- often with up; as, to lock one's self in a room; to lock up the prisoners; to lock up one's silver; to lock intruders out of the house; to lock money into a vault; to lock a child in one's arms; to lock a secret in one's breast.
v. t.
To move with the sound of a click.
v. t.
To coat with flock, as wall paper; to roughen the surface of (as glass) so as to give an appearance of being covered with fine flock.
n.
A lock of wool or hair.
n.
A click. See 3d Click, 2.
v. t.
To flock to; to crowd.
v. t.
To lay up in a crock; as, to crock butter.
v. t.
To stop or fasten, as with a wedge, or block; to scotch; as, to chock a wheel or cask.
v. i.
To give off crock or smut.
n.
The hammer in the lock of a firearm.
v. t.
To cover with, or as with, a cloak; hence, to hide or conceal.
n.
The striking of a clock.
v. t.
A section of a railroad where the block system is used. See Block system, below.
v. t.
To fasten with a lock, or as with a lock; to make fast; to prevent free movement of; as, to lock a door, a carriage wheel, a river, etc.
adv.
Entirely; quite; as, chock home; chock aft.
pl.
of Quantum
v. t.
To prevent ingress or access to, or exit from, by fastening the lock or locks of; -- often with up; as, to lock or lock up, a house, jail, room, trunk. etc.
v. t. & i.
To call, as a hen. See Cluck.