Results 11 to 20 of about 2,245 (174)
Towards symmetric scheme for superdense coding between multiparties [PDF]
Physical Review A, 2002 Recently Liu, Long, Tong and Li [Phys. Rev. A 65, 022304 (2002)] have proposed a scheme for superdense coding between multiparties. This scheme seems to be highly asymmetric in the sense that only one sender effectively exploits entanglement.
Andrzej Grudka +5 more
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Dual Quantum Zeno Superdense Coding. [PDF]
Sci Rep, 2019 AbstractQuantum superdense coding enables a sender to encode a two-bit classical message in one qubit using the preshared entanglement. In this paper, we develop a superdense coding protocol using a dual quantum Zeno (DQZ) gate to take the full advantage of quantum superdense coding from the complete Bell-state analysis.
Zaman F, Jeong Y, Shin H.
europepmc +6 more sources
Superdense coding of quantum states [PDF]
Physical Review Letters, 2004 We describe a method to non-obliviously communicate a 2l-qubit quantum state by physically transmitting l+o(l) qubits of communication, and by consuming l ebits of entanglement and some shared random bits.
A. Peres +6 more
core +5 more sources
Modelling and Simulation in Engineering, 2022 This paper illustrates the way a proposed quantum voting scheme can be designed in combination with a steganography technique called Least Significant Bit (LSB), by modifying a small number of pixels in multiple grayscale images.
Alexandru-Gabriel Tudorache +2 more
doaj +2 more sources
Four-dimensional entanglement distribution over 100 km [PDF]
Scientific Reports, 2018 High-dimensional quantum entanglement can enrich the functionality of quantum information processing. For example, it can enhance the channel capacity for linear optic superdense coding and decrease the error rate threshold of quantum key distribution ...
Takuya Ikuta, Hiroki Takesue
doaj +2 more sources
Classical analogue of quantum superdense coding and communication advantage of a single quantum system [PDF]
QuantumWe analyze utility of communication channels in absence of any short of quantum or classical correlation shared between the sender and the receiver. To this aim, we propose a class of two-party communication games, and show that the games cannot be won ...
Ram Krishna Patra +7 more
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Superdense coding in the resource theory of asymmetry [PDF]
Physical Review A, 2021 We consider a task in which classical information is encoded into a quantum system by an operation restricted by symmetry. The maximum amount of classical information that can be encoded under this restriction, namely the symmetry-restricted classical information capacity, depends on the initial state of the system. Our focus is on whether the capacity
Eyuri Wakakuwa
openalex +4 more sources
Beating the channel capacity limit for linear photonic superdense coding [PDF]
, 2010 Dense coding is arguably the protocol that launched the field of quantum communication. Today, however, more than a decade after its initial experimental realization, the channel capacity remains fundamentally limited as conceived for photons using ...
A Harrow +31 more
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Classical information capacity of superdense coding [PDF]
Physical Review A, 2015 Classical communication through quantum channels may be enhanced by sharing entanglement. Superdense coding allows the encoding, and transmission, of up to two classical bits of information in a single qubit.
Bowen, Garry
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