Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Bhattacharya, Samyadeb"'
In this work, we develop a panoramic schematic of a quantum thermoelectric circuit theory in the steady state regime. We establish the foundations of the said premise by defining the analogs of Kirchhoff's laws for heat currents and temperature gradi
Externí odkaz:
http://arxiv.org/abs/2411.03898
In this work, we characterise a general set of quantum operations which possess a singular fixed point. These channels are dubbed as quantum ergodic channels. We have constructed Lindblad-type master equations for such channels for arbitrary dimensio
Externí odkaz:
http://arxiv.org/abs/2408.04993
Grover's quantum search algorithm promises a quadratic speedup for unstructured search over its classical counterpart. But this advantage is gradually reduced with noise acting on the search space. In this article, we demonstrate that a quantum switc
Externí odkaz:
http://arxiv.org/abs/2401.05866
Autor:
Mukherjee, Saheli, Mallick, Bivas, Yanamandra, Sravani, Bhattacharya, Samyadeb, Maity, Ananda G.
Publikováno v:
Phys Rev A.110.042624 (2024)
Several recent studies have demonstrated the utility of the quantum SWITCH as an important resource for enhancing the performance of various information processing tasks. In a quantum SWITCH, the advantages appear significantly due to the coherent su
Externí odkaz:
http://arxiv.org/abs/2312.11685
Publikováno v:
Phys. Rev. A 110 (2024), 042423
Counter-intuitive to classical notions, quantum conditional entropy can be negative, playing a pivotal role in information-processing tasks. This article delves deeply into quantum channels, emphasizing negative conditional entropy breaking channels
Externí odkaz:
http://arxiv.org/abs/2311.15705
Autor:
Yanamandra, Sravani, Srinidhi, P V, Bhattacharya, Samyadeb, Chakrabarty, Indranil, Goswami, Suchetana
Absolute separable (AS) quantum states are those states from which it is impossible to create entanglement, even under global unitary operations. It is known from the resource theory of non-absolute separability that the set of absolute separable sta
Externí odkaz:
http://arxiv.org/abs/2310.04819
Publikováno v:
Phys. Rev. A 109, 062213 (2024)
The role of CP-indivisibility and incompatibility as valuable resources for various information-theoretic tasks is widely acknowledged. This study delves into the intricate relationship between CP-divisibility and channel compatibility. Our investiga
Externí odkaz:
http://arxiv.org/abs/2309.10806
We investigate the dynamical aspects of the quantum switch and find a particular form of quantum memory emerging out of the switch action. We first analyse the loss of information in a general quantum evolution subjected to a quantum switch and propo
Externí odkaz:
http://arxiv.org/abs/2307.01964
The problem of entanglement detection is a long standing problem in quantum information theory. One of the primary procedures of detecting entanglement is to find the suitable positive but non-completely positive maps. Here we try to give a generic p
Externí odkaz:
http://arxiv.org/abs/2210.17204
Publikováno v:
Journal of Physics A: Mathematical and Theoretical (2024)
There are certain dynamics while being non-Markovian, do never exhibit information backflow. We show that if two such dynamical maps are considered in a scenario where the order of application of these two dynamical maps are not definite, the effecti
Externí odkaz:
http://arxiv.org/abs/2206.04524