Zobrazeno 1 - 10
of 408
pro vyhledávání: '"Sarkar, Debasis"'
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
Based on the conviction of switching information from locally accessible to locally hidden environs, the concept of hidden nonlocality activation has recently been highlighted by Bandyopadhyay et al. in [Phys. Rev. A 104, L050201 (2021)]. They have d
Externí odkaz:
http://arxiv.org/abs/2408.01860
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
Autor:
Kundu, Amit, Sarkar, Debasis
Sharing network nonlocality in an extended quantum network scenario is the new paradigm in the development of quantum theory. In this paper, we investigate the influence of Elegant joint measurement(in short, EJM) bases in an extended bilocal scenari
Externí odkaz:
http://arxiv.org/abs/2406.00838
Autor:
Kundu, Amit, Sarkar, Debasis
Network Nonlocality is an advanced study of quantum nonlocality that comprises network structure beyond Bell's theorem. The development of quantum networks has the potential to bring a lot of technological applications in sevaral quantum information
Externí odkaz:
http://arxiv.org/abs/2405.12379
An unextendible biseparable basis (UBB) is a set of orthogonal pure biseparable states which span a subspace of a given Hilbert space while the complementary subspace contains only genuinely entangled states. These biseparable bases are useful to pro
Externí odkaz:
http://arxiv.org/abs/2404.05882
Tight upper bound of genuine four party Svetlichny type nonlocality with and without local filtering
Identifying the nonlocality of a multiparty quantum state is an important task in quantum mechanics. Seevinck and Svetlichny [Phys. Rev. Lett. 89, 060401 (2002)], and independently, Collins and co-workers [Phys. Rev. Lett. 88, 170405 (2002)] have gen
Externí odkaz:
http://arxiv.org/abs/2310.12311
Autor:
Kundu, Amit, Sarkar, Debasis
Defining nonlocality in a no-input closed quantum network scenario is a new area of interest nowadays. Gisin, in[Entropy 21, 325 (2019)], proposed a possible condition for non-tri-locality of the trivial no-input closed network scenario, triangle net
Externí odkaz:
http://arxiv.org/abs/2310.04619
Classical communication plays a crucial role to distinguish locally a class of quantum states. Despite considerable advances, we have very little knowledge about the number of measurement and communication rounds needed to implement a discrimination
Externí odkaz:
http://arxiv.org/abs/2303.13645
No pure entangled state can be distilled from a $2\otimes 2$ or $2\otimes 3$ mixed state by separable operations. In $3\otimes 3$, pure entanglement can be distilled by separable operation but not by LOCC. In this letter, we proved the conjecture [PR
Externí odkaz:
http://arxiv.org/abs/2212.10664