Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Bandyopadhyay, Somshubhro"'
We consider the problem of distinguishing between the elements of a bipartite maximally entangled orthonormal basis using LOCC (local operations and classical communication) and a partially entangled state acting as a resource. We derive an exact for
Externí odkaz:
http://arxiv.org/abs/2406.13430
Publikováno v:
Phys. Rev. A 109, 052222 (2024)
We consider the problem of determining the state of an unknown quantum sequence without error. The elements of the given sequence are drawn with equal probability from a known set of linearly independent pure quantum states with the property that the
Externí odkaz:
http://arxiv.org/abs/2402.06365
Signal propagation in biochemical networks is characterized by the inherent randomness in gene expression and fluctuations of the environmental components, commonly known as intrinsic and extrinsic noise, respectively. We present a theoretical framew
Externí odkaz:
http://arxiv.org/abs/2312.07172
Recently, it was shown that two distant test masses, each prepared in a spatially superposed quantum state, become entangled through their mutual gravitational interaction. This entanglement, it was argued, is a signature of the quantum nature of gra
Externí odkaz:
http://arxiv.org/abs/2311.08291
Publikováno v:
Phys. Rev. A 109, 042407 (2024)
In a quantum change point problem, a source emitting particles in a fixed quantum state (default) switches to a different state at some stage, and the objective is to identify when the change happened by measuring a sequence of particles emitted from
Externí odkaz:
http://arxiv.org/abs/2308.15148
Publikováno v:
Phys. Rev. A 105, 062212 (2022)
We study the problem of transforming a set of pure bipartite states into another using deterministic LOCC (local operations and classical communication). Necessary conditions for the existence of such a transformation are obtained using LOCC constrai
Externí odkaz:
http://arxiv.org/abs/2204.08821
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:
Phys. Rev. A 104, 032429 (2021)
Entangled states can help in quantum state discrimination by local operations and classical communication (LOCC). For example, a Bell state is necessary (and sufficient) to perfectly discriminate a set of either three or four Bell states by LOCC. In
Externí odkaz:
http://arxiv.org/abs/2106.08721
Publikováno v:
Phys. Rev. A 104, L050201 (2021)
Quantum nonlocality has different manifestations that, in general, are revealed by local measurements of the parts of a composite system. In this paper, we study nonlocality arising from a set of orthogonal states that cannot be perfectly distinguish
Externí odkaz:
http://arxiv.org/abs/2104.11933
Autor:
Bandyopadhyay, Somshubhro
Publikováno v:
Phys. Rev. A 102, 050202(R) (2020)
The superposition principle is fundamental to quantum theory. Yet a recent no-go theorem has proved that quantum theory forbids superposition of unknown quantum states, even with nonzero probability. The implications of this result, however, remain p
Externí odkaz:
http://arxiv.org/abs/2011.02275