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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
Interdisciplinary theory behind quantum computing
Quantum information science is an interdisciplinary field that combines the principles of quantum mechanics, information theory, and computer science to
Quantum_information_science
Textbook by scientists Michael Nielsen and Isaac Chuang
Quantum Computation and Quantum Information is a textbook about quantum information science written by Michael Nielsen and Isaac Chuang, regarded as a
Quantum Computation and Quantum Information
Quantum_Computation_and_Quantum_Information
Computer hardware technology that uses quantum mechanics
A quantum computer is a computer that represents and processes information using quantum states. Quantum computations exploit phenomena such as superposition
Quantum_computing
Area of physical and philosophical debate
interpretation of quantum mechanics is an attempt to explain how the mathematical theory of quantum mechanics might correspond to experienced reality. Quantum mechanics
Interpretations of quantum mechanics
Interpretations_of_quantum_mechanics
Property of computational resources needed
In quantum information theory, magic is a property that quantifies the computational resources needed to describe quantum states beyond stabilizer states
Magic_(quantum_information)
Quantum
The quantum Fisher information is a central quantity in quantum metrology and is the quantum analogue of the classical Fisher information. It is one of
Quantum_Fisher_information
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
Journal
npj Quantum Information is a peer-reviewed open-access scientific journal covering quantum information science. It was established in 2015, launched by
Npj_Quantum_Information
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
Process in quantum computing
Quantum error correction (QEC) comprises a set of techniques used in quantum memory and quantum computing to protect quantum information from errors arising
Quantum_error_correction
Member institute of the Austrian Academy of Sciences
The Institute for Quantum Optics and Quantum Information (IQOQI; German: Institut für Quantenoptik und Quanteninformation) is a member institute of the
Institute for Quantum Optics and Quantum Information
Institute_for_Quantum_Optics_and_Quantum_Information
Description of physical properties at the atomic and subatomic scale
disciplines, including quantum chemistry, quantum biology, quantum field theory, quantum technology, and quantum information science. Quantum mechanics can describe
Quantum_mechanics
Measure in quantum information theory
In quantum information theory, quantum mutual information (QMI), or von Neumann mutual information, after John von Neumann, is a measure of correlation
Quantum_mutual_information
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
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
Networks connecting quantum processors
transmission of information in the form of quantum bits, also called qubits, between physically separated quantum processors. A quantum processor is a
Quantum_network
Cryptography based on quantum mechanical phenomena
encryption tasks. Quantum encryption plays a crucial role in the secure processing, storage, and transmission of information. One aspect of quantum cryptography
Quantum_cryptography
Puzzle of disappearance of information in a black hole
The black hole information paradox is an unsolved problem in physics and a paradox that appears when the predictions of quantum mechanics and general relativity
Black hole information paradox
Black_hole_information_paradox
Academic journal
International Journal of Quantum Information was established in 2003 and is published by World Scientific. It covers the field of quantum information science, with
International Journal of Quantum Information
International_Journal_of_Quantum_Information
Cryptography secured against quantum computers
Post-quantum cryptography (PQC), sometimes referred to as quantum-proof, quantum-safe, or quantum-resistant, is the development of cryptographic algorithms
Post-quantum_cryptography
away, what happens to the information stored in them (since quantum mechanics does not provide for the destruction of information)? Or does the radiation
List of unsolved problems in physics
List_of_unsolved_problems_in_physics
Principle of quantum mechanics
Schrödinger equation governing that system. An example is a qubit used in quantum information processing. A qubit state is most generally a superposition of the
Quantum_superposition
attempts at creating a quantum information theory, showing that Shannon information theory cannot directly be generalized to the quantum case, but rather that
Timeline of quantum computing and communication
Timeline_of_quantum_computing_and_communication
Algorithm to be run on quantum computers
In quantum computing, a quantum algorithm is an algorithm that runs on a realistic model of quantum computation, the most commonly used model being the
Quantum_algorithm
Fringe hypothesis
The quantum mind or quantum consciousness is a group of hypotheses proposing that local physical laws and interactions from classical mechanics or connections
Quantum_mind
Sub-field of quantum physics and optics
counter-intuitive predictions of quantum mechanics, such as entanglement and teleportation, and are a useful resource for quantum information processing. Light propagating
Quantum_optics
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
Foundational object in quantum communication theory
In quantum information theory, a quantum channel is a communication channel that can transmit quantum information, as well as classical information. An
Quantum_channel
Interdisciplinary research area
Quantum machine learning (QML) is the study of quantum algorithms for machine learning. It often refers to quantum algorithms for machine learning tasks
Quantum_machine_learning
Continuous (non-quantized) quantities in quantum information science
Continuous-variable (CV) quantum information is the area of quantum information science that makes use of physical observables, like the strength of an
Continuous-variable quantum information
Continuous-variable_quantum_information
2010 book by Serbian Vlatko Vedral
Universe as Quantum Information is a popular science book by Vlatko Vedral published by Oxford University Press in 2010. Vedral examines information theory
Decoding_Reality
Device measuring quantum mechanical effects
Within quantum technology, a quantum sensor utilizes quantum mechanical phenomena, such as quantum superposition, quantum entanglement, and quantum squeezing
Quantum_sensor
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
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
Type of quantum computer
A topological quantum computer is a type of quantum computer. It utilizes anyons, a type of quasiparticle that occurs in two-dimensional systems. The
Topological_quantum_computer
development of quantum computing, quantum communication and quantum sensing. Quantum computing and communication are two sub-fields of quantum information science
List of companies involved in quantum computing, communication or sensing
List_of_companies_involved_in_quantum_computing,_communication_or_sensing
The Centre for Quantum Computation (CQC) is an alliance of quantum information research groups at the University of Oxford. It was founded by Artur Ekert
Centre for Quantum Computation
Centre_for_Quantum_Computation
Quantum-mechanical version of computer memory
In quantum computing, a quantum memory is the quantum-mechanical version of ordinary computer memory. Whereas ordinary memory stores information as binary
Quantum_memory
Technological development using the laws of quantum mechanics
Quantum engineering is the development of technology that capitalizes on the laws of quantum mechanics. This type of engineering uses quantum mechanics
Quantum_engineering
American quantum computing company
PsiQuantum, Corp. is an American quantum computing company based in Palo Alto, California. It is developing utility-scale, fault tolerant quantum computers
PsiQuantum
Geographic information system software
previous name, Quantum GIS. QGIS functions as geographic information system (GIS) software, allowing users to analyze and edit spatial information, in addition
QGIS
Upper bound on the knowable information of a quantum state
a result in quantum information theory. It is sometimes called Holevo's bound, since it gives an upper bound on the accessible information, which is amount
Holevo's_theorem
Quantum algorithm for integer factorization
Shor's algorithm is a quantum algorithm for finding the prime factors of an integer. It was developed in 1994 by the American mathematician Peter Shor
Shor's_algorithm
Type of recurrent neural network with random and non-trainable internal structure
both AI and quantum information theory have given rise to the concept of quantum neural networks. These hold promise in quantum information processing
Reservoir_computing
Class of transformations that quantum systems and processes can undergo
In quantum mechanics, a quantum operation (also known as quantum dynamical map or quantum process) is a mathematical formalism used to describe a broad
Quantum_operation
Proposed quantum computer implementation
Qubits are stored in stable electronic states of each ion, and quantum information can be transferred through the collective quantized motion of the
Trapped-ion_quantum_computer
Model of quantum computing
In quantum information theory, a quantum circuit is a model for quantum computation, similar to classical circuits, in which a computation is a sequence
Quantum_circuit
Quantum computing implementation
quantum computing is a branch of quantum computing and solid-state physics that implements superconducting electronic circuits as qubits in a quantum
Superconducting quantum computing
Superconducting_quantum_computing
Measure of distinguishability between two quantum states
In quantum information theory, quantum relative entropy is a measure of distinguishability between two quantum states. It is the quantum mechanical analog
Quantum_relative_entropy
Quantum physics-based metaheuristic for optimization problems
Quantum annealing (QA) is an optimization process for finding the global minimum of a given objective function over a given set of candidate solutions
Quantum_annealing
Model for quantum noise in quantum systems
A quantum depolarizing channel is a model for quantum noise in quantum systems. The d {\displaystyle d} -dimensional depolarizing channel can be viewed
Quantum_depolarizing_channel
Paradigm of quantum computer
implementations for quantum information processing (QIP) and quantum computation, optical quantum systems are prominent candidates, since they link quantum computation
Linear optical quantum computing
Linear_optical_quantum_computing
American theoretical physicist
in quantum thermodynamics. She works at the National Institute of Standards and Technology, is a fellow of the Joint Center for Quantum Information and
Nicole_Yunger_Halpern
Interaction of a quantum system with a classical observer
In quantum physics, a measurement is the testing or manipulation of a physical system to yield a numerical result. A fundamental feature of quantum theory
Measurement in quantum mechanics
Measurement_in_quantum_mechanics
Matrices important in quantum mechanics and the study of spin
{i}{2}}{\bigl [}\gamma _{\mu },\gamma _{\nu }{\bigr ]}~.} In quantum information, single-qubit quantum gates are 2 × 2 unitary matrices. The Pauli matrices are
Pauli_matrices
List of academic journals related to quantum computing
as quantum algorithms, quantum information theory, quantum cryptography, and quantum hardware. ACM Transactions on Quantum Computing Advanced Quantum Technologies
List of quantum computing journals
List_of_quantum_computing_journals
American philanthropic organization
consortium brings together specialists from quantum gravity, quantum information, foundations of quantum mechanics, as well Philosophy of Science. According
John_Templeton_Foundation
Change of basis applied in quantum computing
In quantum computing, the quantum Fourier transform (QFT) is a linear transformation on quantum bits, and is the quantum analogue of the discrete Fourier
Quantum_Fourier_transform
Book by Scott Aaronson
Quantum Computing Since Democritus is a 2013 book on quantum information science written by Scott Aaronson. It is loosely based on a course Aaronson taught
Quantum Computing Since Democritus
Quantum_Computing_Since_Democritus
of quantum mechanics is a fundamental part of the history of modern physics. The major chapters of this history begin with the emergence of quantum ideas
History_of_quantum_mechanics
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
Facts provided or learned about something or someone
Information theory Information warfare Infosphere Lexicographic information cost Library science Meme Philosophy of information Quantum information Receiver
Information
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
Quantum search algorithm
In quantum computing, Grover's algorithm, also known as the quantum search algorithm, is a quantum algorithm for unstructured search that finds with high
Grover's_algorithm
Mathematical statistics distance measure
distance Information gain in decision trees Information gain ratio Information theory and measure theory Jensen–Shannon divergence Quantum relative entropy
Kullback–Leibler_divergence
State invariant involving qubits
In quantum information science, the concurrence is a state invariant involving qubits. The concurrence is an entanglement monotone (a way of measuring
Concurrence (quantum computing)
Concurrence_(quantum_computing)
Mathematical tool in quantum physics
such as quantum statistical mechanics, open quantum systems and quantum information. The density matrix is a representation of a linear operator called
Density_matrix
Projected date when quantum computers could break modern encryption
(also Q Day and sometimes as Y2Q, or simply the quantum threat) refers to the theoretical date when quantum computers have reached the point where they can
Quantum_Threat
Quantum Mechanics in Neural Networks
Quantum neural networks are computational neural network models which are based on the principles of quantum mechanics. The first ideas on quantum neural
Quantum_neural_network
Canadian physicist
physicist and computer scientist active in the fields of quantum information theory and quantum computing. He is currently a professor in the Stanford University
Patrick_Hayden_(scientist)
Quantum states of two qubits
quantum information science, the Bell's states or EPR pairs are specific quantum states of two qubits that represent the simplest examples of quantum
Bell_state
encoding the image information in quantum-mechanical systems instead of classical ones and replacing classical with quantum information processing may alleviate
Quantum_image
Fact that observing a situation changes it
understanding of the quantum wave function ψ and the quantum measurement process. To "observe a particle" means to gain information about one of its physical
Observer_effect_(physics)
American theoretical physicist (1911–2008)
"A Private View of Quantum Reality". Quanta Magazine. "Christopher A. Fuchs – Curriculum Vitae" (PDF). Center for Quantum Information and Control, University
John_Archibald_Wheeler
Academic discipline
the initial states. This theory is based on the physics of information much like quantum computing. In 1969, John Clauser, Michael Horne, Abner Shimony
Quantum_game_theory
Computer programming for quantum computers
Quantum programming refers to the process of designing and implementing algorithms that operate on quantum systems, typically using quantum circuits composed
Quantum_programming
Interpretation of quantum mechanics
The many-worlds interpretation (MWI) is an interpretation of quantum mechanics that asserts that the universal wave function is objectively real, and
Many-worlds_interpretation
Field of robotics, physics
Quantum robotics is an interdisciplinary field that investigates the intersection of robotics and quantum mechanics. This field, in particular, explores
Quantum_robotics
In quantum mechanics, and especially quantum information theory, the purity of a normalized quantum state is a scalar defined as γ ≡ tr ( ρ 2 ) {\displaystyle
Purity_(quantum_mechanics)
Application of quantum theory mathematics to cognitive phenomena
of microscopic quantum processes in the human brain. Quantum cognition can be applied to model cognitive phenomena such as information processing by the
Quantum_cognition
Scientific study of digital information
(bioinformatics), thermal physics, molecular dynamics, black holes, quantum computing, information retrieval, intelligence gathering, plagiarism detection, pattern
Information_theory
Computer-based technologies
Information technology (IT) is the study or use of computers, telecommunication systems and other devices to create, process, store, retrieve and transmit
Information_technology
Nano-scale semiconductor particles
Quantum dots (QDs) or semiconductor nanocrystals are semiconductor particles a few nanometres in size with optical and electronic properties that differ
Quantum_dot
Classification of quantum processors
In quantum information, fault-tolerant quantum computing (FTQC) is a regime of quantum processors that are both large-scale and that effectively incorporate
Fault tolerant quantum computing
Fault_tolerant_quantum_computing
Computational complexity of quantum algorithms
Quantum complexity theory is the subfield of computational complexity theory that deals with complexity classes defined using quantum computers, a computational
Quantum_complexity_theory
Science fiction transportation concept
scientific papers and media articles describe "quantum teleportation", a scheme for quantum information transfer, which does not allow for faster-than-light
Teleportation
Quantum description of black holes
theories of quantum gravity, such as superstring theory, are expected to explain its true nature. Second, they resolve the black hole information paradox:
Fuzzball_(string_theory)
Computing company founded in 2014
a quantum computing company formed by the merger of Cambridge Quantum and Honeywell Quantum Solutions. The company's H-Series trapped-ion quantum computers
Quantinuum
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
Subfield of quantum cryptography
Quantum authentication is the sub-field of quantum cryptography that aims to apply quantum information theory for the purpose of authentication of quantum
Quantum_authentication
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
Quantum-informatics technique
The term quantum state discrimination collectively refers to quantum-informatics techniques, with the help of which, by performing a small number of measurements
Quantum_state_discrimination
Theorem in physics
number of closely related results in physics, all of which determine that quantum mechanics is incompatible with local hidden-variable theories, given some
Bell's_theorem
British theoretical physicist
research focuses on quantum foundations, quantum information science, and quantum cryptography. In 1999 he published the first information-theoretically secure
Adrian_Kent
Term in quantum mechanics
In quantum mechanics, notably in quantum information theory, fidelity quantifies the "closeness" between two density matrices. It expresses the probability
Fidelity_of_quantum_states
Measure of quantum entanglement in quantum mechanics
In quantum mechanics, negativity is a measure of quantum entanglement which is easy to compute. It is a measure deriving from the PPT criterion for separability
Negativity (quantum mechanics)
Negativity_(quantum_mechanics)
Austrian quantum physicist (born 1945)
University of Vienna and senior scientist at the Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences. Most of his research
Anton_Zeilinger
Canadian businessman (born 1961)
the further development and commercialization of breakthroughs in Quantum Information Science". Among many other charitable contributions of Lazaridis
Mike_Lazaridis
Indian physicist
the Jaypee Institute of Information Technology (JIIT), Noida. He has worked in quantum optics, quantum information, and quantum cryptography. He is a fellow
Anirban_Pathak
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