Results 81 to 90 of about 2,343,048 (182)
Not So SuperDense Coding - Deterministic Dense Coding with Partially Entangled States [PDF]
, 2004 The utilization of a $d$-level partially entangled state, shared by two parties wishing to communicate classical information without errors over a noiseless quantum channel, is discussed.
A. M. Childs +5 more
core +2 more sources
Optimal distillation of three-qubit W states
, 2010 Some of the asymmetric three qubit $W$ states are used for perfect teleportation, superdense coding and quantum information splitting. We present the protocols for the optimal distillation of the asymmetric as well as the symmetric $W$ states from a ...
Yildiz, Ali
core +1 more source
On the von Neumann capacity of noisy quantum channels
, 1997 We discuss the capacity of quantum channels for information transmission and storage. Quantum channels have dual uses: they can be used to transmit known quantum states which code for classical information, and they can be used in a purely quantum manner,
Adami, C., Cerf, N. J.
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Generalized remote state preparation: Trading cbits, qubits and ebits in quantum communication [PDF]
, 2003 We consider the problem of communicating quantum states by simultaneously making use of a noiseless classical channel, a noiseless quantum channel and shared entanglement.
A. S. Holevo +19 more
core +2 more sources
Quantifying the resource of sharing a reference frame
, 2005 We define a new quantity called refbit, which allows one to quantify the resource of sharing a reference frame in quantum communication protocols. By considering both asymptotic and nonasymptotic protocols we find relations between refbits and other ...
S. J. van Enk, S. J. van Enk
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Delayed commutation in quantum computer networks
, 2005 In the same way that classical computer networks connect and enhance the capabilities of classical computers, quantum networks can combine the advantages of quantum information and communications.
C. Marand +8 more
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, 2011 We present a quantum hyperdense coding protocol with hyperentanglement in polarization and spatial-mode degrees of freedom of photons first and then give the details for a quantum secure direct communication (QSDC) protocol based on this quantum ...
Beige A +17 more
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Experimental implementation of a NMR entanglement witness
, 2012 Entanglement witnesses (EW) allow the detection of entanglement in a quantum system, from the measurement of some few observables. They do not require the complete determination of the quantum state, which is regarded as a main advantage.
A.M. Souza +25 more
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Entanglement in Random Subspaces
, 2004 The selection of random subspaces plays a role in quantum information theory analogous to the role of random strings in classical information theory.
Hayden, Patrick
core +1 more source
Unlocking the advantage of qubit communication in multi-node network configurations
New Journal of PhysicsThe extension of point-to-point communication to multi-node configurations has significant applications in internet and telecommunication networks. Quantum resources promise notable advantages in such settings.
Ananya Chakraborty +7 more
doaj +1 more source