Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Saha, Sutapa"'
A fundamental property of quantum mechanics is that a single qubit can carry at most 1 bit of classical information. For an important class of quantum communication channels, known as entanglement-breaking, this limitation remains valid even if the s
Externí odkaz:
http://arxiv.org/abs/2405.17946
Local Inaccessibility of Random Classical Information : Conditional Nonlocality demands Entanglement
Autor:
Ghosh, Subhendu B., Chowdhury, Snehasish Roy, Gupta, Tathagata, Bhowmik, Anandamay Das, Saha, Sutapa, Bhattacharya, Some Sankar, Guha, Tamal
Discrimination of quantum states under local operations and classical communication (LOCC) is an intriguing question in the context of local retrieval of classical information, encoded in the multipartite quantum systems. All the local quantum state
Externí odkaz:
http://arxiv.org/abs/2307.08457
Autor:
K, Mayalakshmi, Muruganandan, Thigazholi, Naik, Sahil Gopalkrishna, Guha, Tamal, Banik, Manik, Saha, Sutapa
We study the bipartite composition of elementary toy systems with state spaces described by regular polygons. We provide a systematic method to characterize the entangled states in the maximal tensor product composition of such systems. Applying this
Externí odkaz:
http://arxiv.org/abs/2205.05415
Autor:
Gupta, Tathagata, Ghosh, Subhendu B., A V, Ardra, Bhowmik, Anandamay Das, Saha, Sutapa, Guha, Tamal, Rahaman, Ramij, Mukherjee, Amit
The structure of quantum theory assures the discrimination of any possible orthogonal set of states. However, the scenario becomes highly nontrivial in the limited measurement setting and leads to different classes of impossibility, viz., indistingui
Externí odkaz:
http://arxiv.org/abs/2202.03127
Autor:
Ghosh, Subhendu B., Gupta, Tathagata, V., Ardra A., Bhowmik, Anandamay Das, Saha, Sutapa, Guha, Tamal, Mukherjee, Amit
Apart from the Bell nonlocality, which deals with the correlations generated from the local input-output statistics, quantum theory exhibits another kind of nonlocality that involves the indistiguishability of the locally preparable set of multiparti
Externí odkaz:
http://arxiv.org/abs/2201.12832
Publikováno v:
In Biochimie July 2024 222:45-62
Autor:
Sen, Samrat, Lobo, Edwin Peter, Naik, Sahil Gopalkrishna, Patra, Ram Krishna, Gupta, Tathagata, Ghosh, Subhendu B., Saha, Sutapa, Alimuddin, Mir, Guha, Tamal, Bhattacharya, Some Sankar, Banik, Manik
Publikováno v:
Phys. Rev. A 105, 032407 (2022)
We propose the task of local state marking (LSM), where some multipartite quantum states chosen randomly from a known set of states are distributed among spatially separated parties without revealing the identities of the individual states. The colla
Externí odkaz:
http://arxiv.org/abs/2107.12208
The framework of distributed computing, consisting of several spatially separated input-output servers, has immense importance in distant data manipulation. One of the most challenging parts of this setting is to optimize the use of information trans
Externí odkaz:
http://arxiv.org/abs/2012.05781
Publikováno v:
Phys. Rev. Research 2, 012068 (2020)
Quantum nonlocality without entanglement (Q-NWE) encapsulates nonlocal behavior of multipartite product states as they may entail global operation for optimal decoding of the classical information encoded within. Here we show that the phenomena of NW
Externí odkaz:
http://arxiv.org/abs/1908.10676
Autor:
Banik, Manik, Saha, Sutapa, Guha, Tamal, Agrawal, Sristy, Bhattacharya, Some Sankar, Roy, Arup, Majumdar, A. S.
Publikováno v:
Phys. Rev. A 100, 060101 (2019)
Symmetry shares an entwined history with the structure of physical theory. We propose a consequence of symmetry towards the axiomatic derivation of Hilbert space quantum theory. We introduce the notion of information symmetry (IS) and show that it co
Externí odkaz:
http://arxiv.org/abs/1905.09413