"QRAM" redirects here. Not to be confused with Quarterdeck Expanded Memory Manager.
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Units of information
Information-theoretic
shannon (base 2)
nat (base e)
hartley (base 10)
Data storage
bit (binary)
trit (ternary)
dit (decimal)
Quantum information
qubit (binary)
qutrit (ternary)
qudit (d-dimensional)
v
t
e
Part of a series of articles about
Quantum mechanics
Schrödinger equation
Introduction
Glossary
History
Background
Classical mechanics
Old quantum theory
Bra–ket notation
Hamiltonian
Interference
Fundamentals
Complementarity
Decoherence
Entanglement
Energy level
Measurement
Nonlocality
Quantum number
State
Superposition
Symmetry
Tunnelling
Uncertainty
Wave function
Collapse
Experiments
Bell's inequality
Davisson–Germer
Double-slit
Elitzur–Vaidman
Franck–Hertz
Leggett–Garg inequality
Mach–Zehnder
Popper
Quantum eraser
Delayed-choice
Schrödinger's cat
Stern–Gerlach
Wheeler's delayed-choice
Formulations
Overview
Heisenberg
Interaction
Matrix
Phase-space
Schrödinger
Sum-over-histories (path integral)
Equations
Dirac
Klein–Gordon
Pauli
Rydberg
Schrödinger
Interpretations
Bayesian
Consistent histories
Copenhagen
de Broglie–Bohm
Ensemble
Hidden-variable
Local
Superdeterminism
Many-worlds
Objective collapse
Quantum logic
Relational
Transactional
Von Neumann–Wigner
Advanced topics
Relativistic quantum mechanics
Quantum field theory
Quantum information science
Quantum computing
Quantum chaos
EPR paradox
Density matrix
Scattering theory
Quantum statistical mechanics
Quantum machine learning
Scientists
Aharonov
Bell
Bethe
Blackett
Bloch
Bohm
Bohr
Born
Bose
de Broglie
Compton
Dirac
Davisson
Debye
Ehrenfest
Einstein
Everett
Fock
Fermi
Feynman
Glauber
Gutzwiller
Heisenberg
Hilbert
Jordan
Kramers
Lamb
Landau
Laue
Moseley
Millikan
Onnes
Pauli
Planck
Rabi
Raman
Rydberg
Schrödinger
Simmons
Sommerfeld
von Neumann
Weyl
Wien
Wigner
Zeeman
Zeilinger
v
t
e
In quantum computing, quantum memory is the quantum-mechanical version of ordinary computer memory. Whereas ordinary memory stores information as binary states (represented by "1"s and "0"s), quantum memory stores a quantum state for later retrieval. These states hold useful computational information known as qubits. Unlike the classical memory of everyday computers, the states stored in quantum memory can be in a quantum superposition, giving much more practical flexibility in quantum algorithms than classical information storage.
Quantum memory is essential for the development of many devices in quantum information processing, including a synchronization tool that can match the various processes in a quantum computer, a quantum gate that maintains the identity of any state, and a mechanism for converting predetermined photons into on-demand photons. Quantum memory can be used in many aspects, such as quantum computing and quantum communication. Continuous research and experiments have enabled quantum memory to realize the storage of qubits.[1]
In quantum computing, quantummemory is the quantum-mechanical version of ordinary computer memory. Whereas ordinary memory stores information as binary...
Quantum neural networks are computational neural network models which are based on the principles of quantum mechanics. The first ideas on quantum neural...
Quantum cryptography is the science of exploiting quantum mechanical properties to perform cryptographic tasks. The best known example of quantum cryptography...
A quantum computer is a computer that takes advantage of quantum mechanical phenomena. On small scales, physical matter exhibits properties of both particles...
This is a timeline of quantum computing. Stephen Wiesner invents conjugate coding (published in ACM SIGACT News 15(1): 78–88). James Park articulates...
Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information...
In computer organisation, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and...
Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents...
have efficient, spurious-memory-free quantum associative memories for any polynomial number of patterns. A number of quantum algorithms for machine learning...
terms RAM, main memory or primary storage. Archaic synonyms for main memory include core (for magnetic core memory) and store. Main memory operates at a...
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 programming is the process of designing or assembling sequences of instructions, called quantum circuits, using gates, switches, and operators...
Quantum radar is a speculative remote-sensing technology based on quantum-mechanical effects, such as the uncertainty principle or quantum entanglement...
In quantum information theory, a quantum circuit is a model for quantum computation, similar to classical circuits, in which a computation is a sequence...
require to store the quantum states in a quantum memory. Quantummemories can currently store quantum states only for a very short time. Hidden Matching...
Core rope memory is a form of read-only memory (ROM) for computers. It was used in the UNIVAC I (Universal Automatic Computer I) and the UNIVAC II, developed...
Quantum error correction (QEC) is used in quantum computing to protect quantum information from errors due to decoherence and other quantum noise. Quantum...
In quantum computing, a qubit (/ˈkjuːbɪt/) or quantum bit is a basic unit of quantum information—the quantum version of the classic binary bit physically...
High Bandwidth Memory (HBM) is a computer memory interface for 3D-stacked synchronous dynamic random-access memory (SDRAM) initially from Samsung, AMD...
fiber quantum communication almost to its limits. To go further one needs quantummemories and repeaters. His group invented an original quantummemory protocol...
of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics...
Equivalently, is it possible to have three-dimensional self-correcting quantummemory? Gauge block wringing: What mechanism allows gauge blocks to be wrung...
Semiconductor memory is a digital electronic semiconductor device used for digital data storage, such as computer memory. It typically refers to devices...
Dynamic Random-Access Memory (DDR SDRAM) is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) class of memory integrated circuits...
Quantum cognition uses the mathematical formalism of quantum probability theory to model psychology phenomena when classical probability theory fails....
Flash memory is an electronic non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash...
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