Results 71 to 80 of about 4,287,757 (400)
Quantum channel detection [PDF]
Physical Review A, 2013 7 pages, 4 figures, published ...
MACCHIAVELLO, CHIARA, M. Rossi
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Quantum channel marginal problem
Physical Review Research, 2022 Given a set of local dynamics, are they compatible with a global dynamics? We systematically formulate these questions as quantum channel marginal problems. These problems are strongly connected to the generalization of the no-signaling conditions to quantized inputs and outputs and can be understood as a general toolkit to study notions of quantum ...
Hsieh, Chung-Yun +2 more
openaire +5 more sources
Notation for general quantum teleportation [PDF]
, 2001 A new notation for the quantum teleportation of finite dimensional quantum state through a generally entangled quantum channel is introduced. For a given quantum channel an explict mathematical criterion that governs the faithful teleportation is ...
Accardi +12 more
core +3 more sources
Programmability of covariant quantum channels [PDF]
Quantum, 2021 A programmable quantum processor uses the states of a program register to specify one element of a set of quantum channels which is applied to an input register. It is well-known that such a device is impossible with a finite-dimensional program register for any set that contains infinitely many unitary quantum channels (Nielsen and Chuang's No ...
Martina Gschwendtner +3 more
openaire +7 more sources
Generating random quantum channels [PDF]
Journal of Mathematical Physics, 2021 Several techniques of generating random quantum channels, which act on the set of d-dimensional quantum states, are investigated. We present three approaches to the problem of sampling of quantum channels and show that they are mathematically equivalent.
Ion Nechita +6 more
openaire +7 more sources
Quantum circuit design for accurate simulation of qudit channels
New Journal of Physics, 2015 We construct a classical algorithm that designs quantum circuits for algorithmic quantum simulation of arbitrary qudit channels on fault-tolerant quantum computers within a pre-specified error tolerance with respect to diamond-norm distance.
Dong-Sheng Wang, Barry C Sanders
doaj +1 more source
No-Go Theorems for Quantum Resource Purification: New Approach and Channel Theory [PDF]
PRX Quantum, 2020 It is recently shown that there exist fundamental limits to the accuracy and efficiency of purifying generic noisy resource states in any well-behaved quantum resource theory [Fang/Liu, Phys. Rev. Lett. 125, 060405 (2020)].
K. Fang, Zi-Wen Liu
semanticscholar +1 more source
Gaussian Quantum Channels [PDF]
, 2007 20 pages, LaTeX.
Jens Eisert, Michael M. Wolf
openaire +3 more sources
Quantum and classical capacity boosted by a Lorentz transformation
, 2014 In this paper we show that the quantum channel between two inertial observers who transmit quantum information by sending realistic photonic wave packets is a well-studied channel in quantum Shannon theory -- the Pauli channel.
Bradler, Kamil +2 more
core +1 more source
Optimal throughput for covert communication over a classical-quantum channel [PDF]
Information Theory Workshop, 2016 This paper considers the problem of communication over a memoryless classical-quantum wiretap channel subject to the constraint that the eavesdropper on the channel should not be able to learn with high confidence whether the legitimate parties are using
Ligong Wang
semanticscholar +1 more source