Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Das, Debarshi"'
Recently, a weak form of quantum steering, i.e., certification of quantum steering in a one-sided semi-device-independent way, has been formulated [Jebarathinam et al. Phys. Rev. A 108, 042211 (2023)]. In this work, for two-qubit states, we study the
Externí odkaz:
http://arxiv.org/abs/2407.11755
Measurement incompatibility has proved to be an important resource for information-processing tasks. In this work, we analyze various levels of incompatibility of measurement sets. We provide operational classification of measurement incompatibility
Externí odkaz:
http://arxiv.org/abs/2401.01236
Publikováno v:
Phys. Rev. A 108, 042211 (2023)
Superlocality and superunsteerability provide operational characterization of quantum correlations in certain local and unsteerable states respectively. Such quantum correlated states have a nonzero quantum discord. A two-way nonzero quantum discord
Externí odkaz:
http://arxiv.org/abs/2307.09116
Autor:
Hanif, Farhan, Das, Debarshi, Halliwell, Jonathan, Home, Dipankar, Mazumdar, Anupam, Ulbricht, Hendrik, Bose, Sougato
A defining signature of classical systems is "in principle measurability" without disturbance: a feature manifestly violated by quantum systems. We describe a multi-interferometer experimental setup that can, in principle, reveal the nonclassicality
Externí odkaz:
http://arxiv.org/abs/2307.08133
Publikováno v:
Phys. Rev. Lett. 132, 030202 (2024)
The search for empirical schemes to evidence the nonclassicality of large masses is a central quest of current research. However, practical schemes to witness the irreducible quantumness of an arbitrarily large mass are still lacking. To this end, we
Externí odkaz:
http://arxiv.org/abs/2211.10318
Publikováno v:
Phys. Rev. A 107, 062210 (2023)
Measurement incompatibility stipulates the existence of quantum measurements that cannot be carried out simultaneously on single systems. We show that the set of input-output probabilities obtained from d-dimensional classical systems assisted with s
Externí odkaz:
http://arxiv.org/abs/2209.14582
Publikováno v:
Phys. Rev. A 107, 022613 (2023)
Spatial separation restricts the set of locally implementable quantum operations on distributed multipartite quantum systems. We propose that indefinite causal structure arising due to quantum superposition of different space-time geometries can be u
Externí odkaz:
http://arxiv.org/abs/2209.12925
Publikováno v:
Proceedings of the Royal Society A 478, 20220231 (2022)
The quantum switch describes a quantum operation in which two or more quantum channels act on a quantum system with the order of application determined by the state of an order quantum system. And by suitably choosing the state of the order system, o
Externí odkaz:
http://arxiv.org/abs/2111.08266
Publikováno v:
Quantum 6, 716 (2022)
Certification of quantum devices received from unknown providers is a primary requirement before utilizing the devices for any information processing task. Here, we establish a protocol for certification of a particular set of $d$-outcome quantum mea
Externí odkaz:
http://arxiv.org/abs/2110.01041
Publikováno v:
Phys. Rev. A 106, 022428 (2022)
We study how different types of quantum correlations can be established as the consequence of a generalized entanglement swapping protocol where starting from two Bell pairs (1, 2) and (3, 4), a general quantum measurement (denoted by a positive oper
Externí odkaz:
http://arxiv.org/abs/2109.14315