Results 51 to 60 of about 236,146 (309)
Dynamics of coherence-induced state ordering under Markovian channels [PDF]
Front. Phys. 13(5), 130310(2018), 2018 We study the dynamics of coherence-induced state ordering under incoherent channels, particularly four specific Markovian channels: $-$ amplitude damping channel, phase damping channel, depolarizing channel and bit flit channel for single-qubit states.
arxiv +1 more source
Bipartite quantum channels using multipartite cluster-type entangled coherent states [PDF]
, 2010 We propose a particular encoding for bipartite entangled states derived from multipartite cluster-type entangled coherent states (CTECSs). We investigate the effects of amplitude damping on the entanglement content of this bipartite state, as well as its
A. Vidiella-Barranco +8 more
core +2 more sources
Cejing jishu, 2023 In the process of oil drilling, the acquisition and real-time transmission of downhole information is very important for the accurate evaluation of formation, reservoir description and development.
WANG Senliang +5 more
doaj +1 more source
Quantum Fisher and Skew information for Unruh accelerated Dirac qubit [PDF]
, 2015 We develop a Bloch vector representation of Unruh channel for a Dirac field mode. This is used to provide a unified, analytical treatment of quantum Fisher and Skew information for a qubit subjected to the Unruh channel, both in its pure form as well as ...
Alok, Ashutosh Kumar +2 more
core +2 more sources
The Holevo capacity of a generalized amplitude-damping channel
Chinese Physics, 2007 The Holevo capacity of a generalized amplitude-damping channel is investigated by using a numerical method. It is shown that the Holevo capacity depends on the channel parameters representing the ambient temperature and fidelity. In particular, under a special condition, the Holevo capacity of the generalized amplitude-damping channel can be written as
Hou Li-Zhen, Fang Mao-Fa
openaire +2 more sources
Quantum speedup in noninertial frames
European Physical Journal C: Particles and Fields, 2020 We investigate the speedup evolution of the system under the influence of the Unruh effect, where one of the observers (e.g., Bob) is uniformly accelerated.
Kai Xu +4 more
doaj +1 more source
IEEE Access, 2019 In this paper, a novel protocol for asymmetric bidirectional controlled quantum teleportation (ABCQT) by using the nine-qubit entangled state as a quantum channel is proposed.
Ri-Gui Zhou +4 more
doaj +1 more source
Three-player quantum Kolkata restaurant problem under decoherence [PDF]
Quantum Information Processing, Volume 12, Issue 1, pp 577-586
(2013), 2011 Effect of quantum decoherence in a three-player quantum Kolkata restaurant problem is investigated using tripartite entangled qutrit states. Amplitude damping, depolarizing, phase damping, trit-phase flip and phase flip channels are considered to analyze the behaviour of players payoffs.
arxiv +1 more source
Entanglement properties of optical coherent states under amplitude damping [PDF]
, 2010 Through concurrence, we characterize the entanglement properties of optical coherent-state qubits subject to an amplitude damping channel. We investigate the distillation capabilities of known error correcting codes and obtain upper bounds on the ...
C. H. Bennett +6 more
core +3 more sources
Detecting positive quantum capacities of quantum channels
npj Quantum Information, 2022 Determining whether a noisy quantum channel can be used to reliably transmit quantum information is a challenging problem in quantum information theory. This is because it requires computation of the channel’s coherent information for an unbounded number
Satvik Singh, Nilanjana Datta
doaj +1 more source