Zobrazeno 1 - 10
of 372
pro vyhledávání: '"DATTA, NILANJANA"'
Autor:
Singh, Satvik, Datta, Nilanjana
We consider an open quantum system undergoing Markovian dynamics, the latter being modelled by a discrete-time quantum Markov semigroup $(\Phi^n)_{n \in {\mathbb{N}}}$, resulting from the action of sequential uses of a quantum channel $\Phi$, with $n
Externí odkaz:
http://arxiv.org/abs/2409.17743
Autor:
Audenaert, Koenraad, Bergh, Bjarne, Datta, Nilanjana, Jabbour, Michael G., Capel, Ángela, Gondolf, Paul
We establish a tight upper bound for the difference in von Neumann entropies between two quantum states, $\rho_1$ and $\rho_2$. This bound is expressed in terms of the von Neumann entropies of the mutually orthogonal states derived from the Jordan-Ha
Externí odkaz:
http://arxiv.org/abs/2408.15306
Given a quantum channel and a state which satisfy a fixed point equation approximately (say, up to an error $\varepsilon$), can one find a new channel and a state, which are respectively close to the original ones, such that they satisfy an exact fix
Externí odkaz:
http://arxiv.org/abs/2405.01532
Autor:
Cheng, Hao-Chung, Datta, Nilanjana, Liu, Nana, Nuradha, Theshani, Salzmann, Robert, Wilde, Mark M.
Quantum hypothesis testing (QHT) has been traditionally studied from the information-theoretic perspective, wherein one is interested in the optimal decay rate of error probabilities as a function of the number of samples of an unknown state. In this
Externí odkaz:
http://arxiv.org/abs/2403.17868
Consider an open quantum system with (discrete-time) Markovian dynamics. Our task is to store information in the system in such a way that it can be retrieved perfectly, even after the system is left to evolve for an arbitrarily long time. We show th
Externí odkaz:
http://arxiv.org/abs/2402.18703
Autor:
Jabbour, Michael G., Datta, Nilanjana
Uniform continuity bounds on entropies are generally expressed in terms of a single distance measure between a pair of probability distributions or quantum states, typically, the total variation distance or trace distance. However, if an additional d
Externí odkaz:
http://arxiv.org/abs/2310.17329
We study asymmetric binary channel discrimination, for qantum channels acting on separable Hilbert spaces. We establish quantum Stein's lemma for channels for both adaptive and parallel strategies, and show that under finiteness of the geometric R\'e
Externí odkaz:
http://arxiv.org/abs/2308.12959
We study the problem of binary composite channel discrimination in the asymmetric setting, where the hypotheses are given by fairly arbitrary sets of channels, and samples do not have to be identically distributed. In the case of quantum channels we
Externí odkaz:
http://arxiv.org/abs/2303.02016
Publikováno v:
IEEE Trans. Inf. Theory 70(5), 3427-3452 (2024)
In this article we develop a continuous variable (CV) shadow tomography scheme with wide ranging applications in quantum optics. Our work is motivated by the increasing experimental and technological relevance of CV systems in quantum information, qu
Externí odkaz:
http://arxiv.org/abs/2211.07578
Autor:
Singh, Satvik, Datta, Nilanjana
Publikováno v:
IEEE Transactions on Information Theory, vol. 69, no. 10, pp. 6564-6570, Oct. 2023
Assume that Alice, Bob, and Charlie share a tripartite pure state $|\psi_{ABC}\rangle$. We prove that if Alice cannot distill entanglement with either Bob or Charlie using $|\psi_{ABC}\rangle$ and local operations with any one of the following config
Externí odkaz:
http://arxiv.org/abs/2207.05193