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Two-bit quantum communication protocol
In quantum information theory, superdense coding (also referred to as dense coding) is a quantum communication protocol to communicate a number of classical
Superdense_coding
Quantum states of two qubits
Bell's states is useful in analysis of quantum communication, such as superdense coding and quantum teleportation. These mechanisms cannot transmit information
Bell_state
Computer hardware technology that uses quantum mechanics
light because the classical bits must travel through normal channels. Superdense coding is the complementary protocol: using one shared e-bit and sending
Quantum_computing
Basic unit of quantum information
However, a qubit can hold more information, e.g., up to two bits using superdense coding (see Holevo's theorem). A bit is always completely in either one of
Qubit
American-Israeli research physicist (1942–2021)
quantum multiplexing (the earliest example of oblivious transfer) and superdense coding (the first and most basic example of entanglement-assisted communication)
Stephen_Wiesner
Description of physical properties at the atomic and subatomic scale
quantum communication protocols, such as quantum key distribution and superdense coding. Contrary to popular misconception, entanglement does not allow sending
Quantum_mechanics
Information held in the state of a quantum system
information about its preparation. This is Holevo's theorem. However, in superdense coding a sender, by acting on one of two entangled qubits, can convey two
Quantum_information
Process in quantum computing
classical counterpart, the classical error-correcting code. In classical coding theory, a code is commonly denoted by the notation [ n , k , d ] {\displaystyle
Quantum_error_correction
Basic circuit in quantum computing
that only require the use of a handful of quantum logic gates are superdense coding, the quantum Byzantine agreement and the BB84 cipherkey exchange protocol
Quantum_logic_gate
Property of computational resources needed
gravity and holography. In holographic quantum error-correcting codes, stabilizer-code models reproduce some qualitative features of the Ryu–Takayanagi
Magic_(quantum_information)
Quantum information paradigm
applications, such as quantum teleportation, quantum error correction, and superdense coding, rely on entanglement. However, entanglement is a fragile quantum
Quantum_illumination
Physical phenomenon
improvements on past calculations. Physics portal Science portal Superdense coding Quantum complex network Quantum mechanics Introduction to quantum
Quantum_teleportation
Upper bound on the knowable information of a quantum state
the computation than is possible classically. Classical capacity Superdense coding Preskill, John (June 2016). "Chapter 10. Quantum Shannon Theory" (PDF)
Holevo's_theorem
Laws of quantum information
bit), 1 ebit + 1 qubit ⩾ {\displaystyle \geqslant } 2 bits (i.e. superdense coding), 1 ebit + 2 bits ⩾ {\displaystyle \geqslant } 1 qubit (i.e. quantum
Bennett's_laws
Physics phenomenon
be achieved. Among the best-known applications of entanglement are superdense coding and quantum teleportation. Most researchers believe that entanglement
Quantum_entanglement
Topological quantum error correcting code
The surface code is a topological quantum error correcting code, and an example of a stabilizer code, defined on a two-dimensional spin lattice. The first
Surface_code
Physics experiment
(2016). "Classical hypercorrelation and wave-optics analogy of quantum superdense coding". Scientific Reports. 5 18574. Bibcode:2015NatSR...518574L. doi:10
Double-slit_experiment
Quantum error correction code
communication, a stabilizer code is a class of quantum codes for performing quantum error correction. The toric code, and surface codes more generally, are types
Stabilizer_code
Cryptography secured against quantum computers
Coding and Mathematics. Springer. doi:10.1007/978-1-4757-3585-7. ISBN 978-1-4757-3585-7. Wang, Yongge (2016). "Quantum resistant random linear code based
Post-quantum_cryptography
Quantum search algorithm
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Grover's_algorithm
Quantum algorithm for integer factorization
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Shor's_algorithm
Encoding an n-bit string in m qubits
theorem Superdense coding Quantum finite automaton Bell's theorem Ambainis, A.; Nayak, A.; Ta-Shma, A.; Vazirani, U. (1999). "Dense quantum coding and a
Quantum_random_access_code
Secure communication method
from a coding theory point of view information reconciliation is essentially source coding with side information. In consequence any coding scheme that
Quantum_key_distribution
Description of a quantum-mechanical system
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Schrödinger_equation
Principle in quantum information theory
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
No-communication_theorem
Quantum computing algorithm
repeat Apply the decoding operation of the five-qubit error correcting code and measure the syndrome. If the measured syndrome is | 0000 ⟩ {\displaystyle
Magic_state_distillation
Quantum logic gate
|\Phi ^{+}\rangle } Bell state; this forms part of the setup of the superdense coding, quantum teleportation, and entangled quantum cryptography algorithms
Controlled_NOT_gate
Theorem in quantum information science
that it is, by independently devising the first quantum error correcting codes, which circumvent the no-cloning theorem. Similarly, cloning would violate
No-cloning_theorem
Theorem in physics
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Bell's_theorem
Proposed quantum computer implementation
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Trapped-ion_quantum_computer
Type of quantum computer built out of Rydberg atoms
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Neutral_atom_quantum_computer
Quantum Mechanics in Neural Networks
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_neural_network
Foundational object in quantum communication theory
allows one to transmit quantum information using a classical channel. Superdense coding achieves two bits per qubit. These results indicate the significant
Quantum_channel
Quantum error correcting code
The Gottesman–Kitaev–Preskill (GKP) code is a quantum error correcting code that encodes logical qubits into the continuous degrees of freedom of a quantum
Gottesman–Kitaev–Preskill code
Gottesman–Kitaev–Preskill_code
Quantum algorithm
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
BHT_algorithm
Cryptography based on quantum mechanical phenomena
York, introduced the concept of quantum conjugate coding. His seminal paper titled "Conjugate Coding" was rejected by the IEEE Information Theory Society
Quantum_cryptography
Code used in quantum error correction
In quantum computing, the Shor code or Shor nine qubit code is a foundational code in quantum error correction that protects quantum information against
Shor_code
Israeli settlement in the West Bank
quantum multiplexing (the earliest example of oblivious transfer) and superdense coding Marc Zell (1953-), lawyer. "Regional Statistics". Israel Central Bureau
Tekoa_(Israeli_settlement)
Class of quantum error correcting codes
linear codes with some special properties. Examples of CSS codes include the Shor code, Steane code, the toric code, and more general surface codes. Let
CSS_code
Austrian quantum physicist
GHZ experiment Quantum teleportation Quantum entanglement swapping Superdense coding Awards Pour le Mérite (2000) Klopsteg Memorial Award (2004) King Faisal
Anton_Zeilinger
Computer programming for quantum computers
them across various quantum hardware and simulators without modifying the code. The SDK supports multiple quantum programming libraries, including Qiskit
Quantum_programming
Process of "purifying" entangled quantum states
one-way stabilizer entanglement distillation protocol uses a stabilizer code for the distillation procedure. Suppose the stabilizer S {\displaystyle {\mathcal
Entanglement_distillation
Planned quantum technology campus in Chicago
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Illinois Quantum and Microelectronics Park
Illinois_Quantum_and_Microelectronics_Park
Model of quantum computing
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_circuit
Quantum key distribution protocol - B92
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
B92_protocol
Type of quantum computer
realization of non-abelian anyons on quantum processors, the first used a toric code with twist defects as a topological degeneracy (or topological defect) while
Topological_quantum_computer
Sub-field of quantum physics and optics
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_optics
Quantum computing applied to natural language processing
Ayala, "An Introduction to Quantum Natural Language Processing (QNLP)", Coded Leadership, CRC Press, pp. 1–23, retrieved 2022-11-11 Meichanetzidis, Konstantinos;
Quantum natural language processing
Quantum_natural_language_processing
Restricted model of non-universal quantum computation
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Boson_sampling
Structure that repeats in time; a novel type or phase of non-equilibrium matter
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Time_crystal
Trapped-ion quantum gate
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Mølmer–Sørensen_gate
Aspect of quantum information science
protocol Introductory article about the protocol: arXiv:1101.3954 Demonstration code of quantum energy teleportation using Qiskit is available in GitHub
Quantum_energy_teleportation
Form of quantum computing
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Hamiltonian quantum computation
Hamiltonian_quantum_computation
Model of quantum computation
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_Turing_machine
Deterministic quantum algorithm
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Deutsch–Jozsa_algorithm
Open-source software development kit
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Qiskit
Theorem in quantum mechanics
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Gleason's_theorem
Definition of quantum circuits
ISSN 1050-2947. S2CID 8391036. Gottesman, Daniel (1997-05-28). Stabilizer Codes and Quantum Error Correction (PhD thesis). Caltech. arXiv:quant-ph/9705052
Clifford_gate
Networks connecting quantum processors
must be introduced such as the Shor code or one of a number of more general and efficient codes. All of these codes work by distributing the quantum information
Quantum_network
Physical quantity carried in photons
(2008). "Beating the channel capacity limit for linear photonic superdense coding". Nature Physics. 4 (4): 282. arXiv:1009.5128. Bibcode:2008NatPh.
Angular_momentum_of_light
Interdisciplinary theory behind quantum computing
entanglement, as seen from an information-theoretic point of view Quantum dense coding Quantum teleportation Entanglement-assisted classical capacity No-communication
Quantum_information_science
Quantum key distribution protocol
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
BB84
Point defect in diamonds
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Nitrogen-vacancy_center
Means of studying the interaction of light and matter
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Circuit quantum electrodynamics
Circuit_quantum_electrodynamics
Algorithm to be run on quantum computers
September 2018 at the Wayback Machine. http://computetube.de/#quantum Pseudo Code Dalzell, Alexander M.; et al. (2025). Quantum Algorithms. arXiv:2310.03011
Quantum_algorithm
Method of inferring the results of a computation without running a quantum computer
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Counterfactual quantum computation
Counterfactual_quantum_computation
Quantum algorithm for solving systems of linear equations
Eric (2019-07-03). Programming Quantum Computers: Essential Algorithms and Code Samples. O'Reilly Media. p. 267. ISBN 978-1-4920-3965-5. Cai, X.-D; Weedbrook
HHL_algorithm
Interdisciplinary research area
org. Retrieved 2025-08-06. LANL (26 August 2024). "LANL team cracks the code on the bane of quantum ML algorithms | LANL". Los Alamos National Laboratory
Quantum_machine_learning
Computational benchmark
theorem states that a noisy quantum computer can use quantum error-correcting codes to simulate a noiseless quantum computer, assuming the error introduced
Quantum_supremacy
Type of error correction in quantum computing
five-qubit error correcting code, [[5,1,3]] code, or Laflamme–Miquel–Paz–Zurek code is the smallest quantum error correcting code that can protect a logical
Five-qubit error correcting code
Five-qubit_error_correcting_code
Property of states in quantum mechanics
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_steering
Quantum mechanics idea
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Entanglement_swapping
Maximum rate of a quantum channel
capacity theorem is proved in two parts: the direct coding theorem and the converse theorem. The direct coding theorem demonstrates that the quantum mutual information
Entanglement-assisted classical capacity
Entanglement-assisted_classical_capacity
American physicist, information theorist, and IBM Research fellow
worked for James Watson one year as a teaching assistant about the genetic code. For the next two years he continued this research under Aneesur Rahman at
Charles H. Bennett (physicist)
Charles_H._Bennett_(physicist)
Quantum-informatics technique
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_state_discrimination
Code for quantum correction
The Steane code is a tool in quantum error correction introduced by Andrew Steane in 1996. It is a CSS code (Calderbank-Shor-Steane), using the classical
Steane_code
1, 1983). "Conjugate coding". ACM SIGACT News. 15 (1): 78–88. doi:10.1145/1008908.1008920. Wiesner, Stephen. "Conjugate Coding" (PDF). California Institute
Timeline of quantum computing and communication
Timeline_of_quantum_computing_and_communication
Model of computation
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
One_clean_qubit
Superconducting qubit implementation
physical realizations of oscillator-based error correction codes. These codes are known as 'bosonic codes'. Transmons have been explored for use as d-dimensional
Transmon
Quantum algorithm for eigenvalue estimation
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum phase estimation algorithm
Quantum_phase_estimation_algorithm
Programming language for quantum algorithms
their tests. Microsoft has also hosted a Quantum Coding contest on Codeforces, called Microsoft Q# Coding Contest - Codeforces, and also provided related
Q_Sharp
Protocol in quantum cryptography
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Decoy_state
Computational complexity class of problems
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
BQP
Concept in quantum information theory
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_state_purification
Christopher (2020). "Fault-Tolerant Operation of a Quantum Error-Correction Code". arXiv:2009.11482 [quant-ph]. "The Power of Co-Design, Hermanni Heimonen
List_of_quantum_processors
Decay of nuclear spin polarization in MRI and NMR
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Relaxation_(NMR)
Quantum cryptography protocol
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
SARG04
Theorem pertaining to the ontology of quantum mechanics
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Pusey–Barrett–Rudolph_theorem
Elementary particle with negative charge
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Electron
Paradigm of quantum computer
resources. Meanwhile, the KLM scheme is based on the fact that proper quantum coding can reduce the resources for obtaining accurately encoded qubits efficiently
Linear optical quantum computing
Linear_optical_quantum_computing
Quantum mechanics simulator
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Libquantum
Metric for a quantum computer's capabilities
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_volume
Optimization algorithms using quantum computing
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum optimization algorithms
Quantum_optimization_algorithms
Quantum algorithm
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Variational quantum eigensolver
Variational_quantum_eigensolver
Simulators of quantum mechanical systems
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_simulator
Change of basis applied in quantum computing
K. R. (2006). Lectures on Quantum Computation, Quantum Error Correcting Codes and Information Theory. Tata Institute of Fundamental Research. ISBN 978-81-7319-688-1
Quantum_Fourier_transform
Type of quantum information processing
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Adiabatic_quantum_computation
Quantum logic gate
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Cirac–Zoller controlled-NOT gate
Cirac–Zoller_controlled-NOT_gate
Type of quantum circuit construction
teleportation quantum energy teleportation quantum gate teleportation Superdense coding Quantum cryptography Decoy state Hidden matching Post-quantum cryptography
Quantum_gate_teleportation
Cloud quantum computing platform
the quantum circuit model of computation, typically through code written in Qiskit. This code can be compiled down to OpenQASM for execution on real quantum
IBM_Quantum_Platform
SUPERDENSE CODING
SUPERDENSE CODING
SUPERDENSE CODING
SUPERDENSE CODING
Boy/Male
Welsh
Little.
Boy/Male
American, Biblical, British, Chinese, French, German, Hebrew, Jewish
Help; Court; Of My God; God has Helped; The Lord will Help
Boy/Male
English American
Earnest.
Girl/Female
Indian, Malayalam
Soft; Grass
Boy/Male
Arabic
Intelligent
Boy/Male
Hindu, Indian, Marathi
Pure
Girl/Female
Hindu
The original, Love
Girl/Female
Indian, Telugu
Straigh Forward
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Tamil
Lord krishnas devotee
Girl/Female
Muslim
One who makes something clear, Manifest, One who clarifies, Plain
SUPERDENSE CODING
SUPERDENSE CODING
SUPERDENSE CODING
SUPERDENSE CODING
SUPERDENSE CODING
v. t.
To supervene upon; to come as an addition to.
v. i.
To come as something additional or extraneous; to occur with reference or relation to something else; to happen upon or after something else; to be added; to take place; to happen.
p. pr. & vb. n.
of Supervene
imp. & p. p.
of Supervene