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pro vyhledávání: '"Bhar, Amit"'
Autor:
Char, Priyabrata, Chakraborty, Dipayan, Dey, Prabir Kumar, Sen, Ajoy, Bhar, Amit, Chattopadhyay, Indrani, Sarkar, Debasis
The distribution of entanglement in a multiparty system can be described through the principles of monogamy or polygamy. Monogamy is a fundamental characteristic of entanglement that restricts its distribution among several number of parties(more tha
Externí odkaz:
http://arxiv.org/abs/2409.00865
In 2016, A. Winter et al.(Physical Review Letters 116 (12) (2016) 120404) provided an operational meaning to relative entropy of coherence and coherence of formation by introducing coherence distillation and dilation protocol in asymptotic setup. Tho
Externí odkaz:
http://arxiv.org/abs/2111.14645
Autor:
Chakraborty, Dipayan, Dey, Prabir Kumar, Das, Nabendu, Chattopadhyay, Indrani, Bhar, Amit, Sarkar, Debasis
Publikováno v:
Phys. Rev. A 100, 052316 (2019)
Resource theory of quantum coherence originated like entanglement in quantum information theory. However, still now proper classification of quantum states is missing under coherence. In this work, we have provided a classification of states under lo
Externí odkaz:
http://arxiv.org/abs/1910.11391
Autor:
Dey, Prabir Kumar, Chakraborty, Dipayan, Char, Priyabrata, Chattopadhyay, Indrani, Bhar, Amit, Sarkar, Debasis
Emerging from the superposition principle, the resource theory of coherence plays a crucial role in many information-processing tasks. Recently, a generalization to this resource theory was investigated with respect to arbitrary positive operator val
Externí odkaz:
http://arxiv.org/abs/1908.01882
The concept of entanglement fraction is generalized to define coherence fraction of a quantum state. Precisely, it quantifies the proximity of a quantum state to maximally coherent state and it can be used as a measure of coherence. Coherence fractio
Externí odkaz:
http://arxiv.org/abs/1906.08326
Akademický článek
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Publikováno v:
Physical Review A, 93, 012327, Published 15 January 2016
Monogamy is a defining feature of entanglement, having far reaching applications. Recently, Regula \textit{et.al.} in Phys. Rev. Lett. \textbf{113}, 110501(2014) have proposed a stronger version of monogamy relation for concurrence. We have extended
Externí odkaz:
http://arxiv.org/abs/1512.06816
Publikováno v:
Quantum Information Processing, January 2016, Volume 15, Issue 1, pp 233-243
Recent findings suggest, separable states, which are otherwise of no use in entanglement dependent tasks, can also be used in information processing tasks that depend upon the discord type general non classical correlations. In this work, we explore
Externí odkaz:
http://arxiv.org/abs/1508.05920
Publikováno v:
Quantum Information Processing, Volume 14, Issue 7, pp 2517-2533, (2015)
General quantum correlations measures like quantum discord, one norm geometric quantum discord, exhibit freezing, sudden change, double sudden change behavior in their decay rates under different noisy channels. Therefore, one may attempt to investig
Externí odkaz:
http://arxiv.org/abs/1504.05231
Publikováno v:
Quantum Information Processing, Volume 14, Issue 1, pp 269-285, (2015)
Local quantum uncertainty (in short LQU) was introduced by Girolami et. al.(Phy. Rev. Lett. \textbf{110}, 240402) as a measure of quantum uncertainty in a quantum state as achievable on single local measurement. However, such quantity do satisfy all
Externí odkaz:
http://arxiv.org/abs/1304.7019