Results 81 to 90 of about 4,287,757 (400)
Quantum Biological Channel Modeling and Capacity Calculation
Life, 2012 Quantum mechanics has an important role in photosynthesis, magnetoreception, and evolution. There were many attempts in an effort to explain the structure of genetic code and transfer of information from DNA to protein by using the concepts of quantum ...
Ivan B. Djordjevic
doaj +1 more source
Quantum channel capacities [PDF]
2010 IEEE Information Theory Workshop, 2010 This review of quantum channel capacities is the basis for my upcoming talk at ITW 2010 in ...
openaire +3 more sources
Public Quantum Communication and Superactivation
, 2010 Is there a meaningful quantum counterpart to public communication? We argue that the symmetric-side channel -- which distributes quantum information symmetrically between the receiver and the environment -- is a good candidate for a notion of public ...
Brandão, Fernando G. S. L. +1 more
core +1 more source
Factorizations of quantum channels [PDF]
Linear Algebra and its Applications, 2018 We find a connection between the existence of a factorization of a quantum channel and the existence of low-rank solutions to certain linear matrix equations. Using this, we show that if a quantum channel is factorized by a direct integral of factors, it must lie in the convex hull of quantum channels which are factorized respectively by the factors in
openaire +2 more sources
A general method for selecting quantum channel for bidirectional controlled state teleportation and other schemes of controlled quantum communication [PDF]
Quantum Information Processing, 2015 Recently, a large number of protocols for bidirectional controlled state teleportation (BCST) have been proposed using n-qubit entangled states ($$n\in \{5,6,7\}$$n∈{5,6,7}) as quantum channel. Here, we propose a general method of selecting multiqubit $$(
Kishore Thapliyal, A. Verma, A. Pathak
semanticscholar +1 more source
Absolutely separating quantum maps and channels
New Journal of Physics, 2017 Absolutely separable states ϱ remain separable under arbitrary unitary transformations $U\varrho {U}^{\dagger }$ . By example of a three qubit system we show that in a multipartite scenario neither full separability implies bipartite absolute ...
S N Filippov +2 more
doaj +1 more source
Entropy Bound for the Classical Capacity of a Quantum Channel Assisted by Classical Feedback [PDF]
, 2019 We prove that the classical capacity of an arbitrary quantum channel assisted by a free classical feedback channel is bounded from above by the maximum average output entropy of the quantum channel.
Ding, Dawei +3 more
core +3 more sources
Quantum channel construction with circuit quantum electrodynamics [PDF]
, 2016 Quantum channels can describe all transformations allowed by quantum mechanics. We provide an explicit universal protocol to construct all possible quantum channels, using a single qubit ancilla with quantum non-demolition readout and adaptive control ...
Chao Shen +7 more
semanticscholar +1 more source
Idler-free multi-channel discrimination via multipartite probe states
npj Quantum Information, 2021 The characterisation of Quantum Channel Discrimination (QCD) offers critical insight for future quantum technologies in quantum metrology, sensing and communications. The task of multi-channel discrimination creates a scenario in which the discrimination
Cillian Harney, Stefano Pirandola
doaj +1 more source
Occam's Quantum Strop: Synchronizing and Compressing Classical Cryptic Processes via a Quantum Channel. [PDF]
Sci Rep, 2016 A stochastic process’ statistical complexity stands out as a fundamental property: the minimum information required to synchronize one process generator to another.
Mahoney JR +2 more
europepmc +3 more sources