Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Ananda, G"'
States with negative Wigner function, a significant subclass of non-classical states, serve as a valuable resource for various quantum information processing tasks. Here, we provide a criterion for detecting such quantum states exhibiting negative Wi
Externí odkaz:
http://arxiv.org/abs/2407.12116
Autor:
Casapao, Joshua Carlo A., Maity, Ananda G., Benchasattabuse, Naphan, Hajdušek, Michal, Van Meter, Rodney, Elkouss, David
Minimizing both experimental effort and consumption of valuable quantum resources in state estimation is vital in practical quantum information processing. Here, we explore characterizing states as an additional benefit of the entanglement distillati
Externí odkaz:
http://arxiv.org/abs/2406.13937
Autor:
Maity, Ananda G., Casapao, Joshua C. A., Benchasattabuse, Naphan, Hajdušek, Michal, Van Meter, Rodney, Elkouss, David
Publikováno v:
ACM SIGMETRICS Performance Evaluation Review, 51, 66-68 (2023)
Estimating noise processes is an essential step for practical quantum information processing. Standard estimation tools require consuming valuable quantum resources. Here we ask the question of whether the noise affecting entangled states can be lear
Externí odkaz:
http://arxiv.org/abs/2402.08928
Autor:
Mukherjee, Saheli, Mallick, Bivas, Yanamandra, Sravani, Bhattacharya, Samyadeb, Maity, Ananda G.
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
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
Publikováno v:
Phys. Rev. Research 6, 033089 (2024)
Estimating the information transmission capability of a quantum channel remains one of the fundamental problems in quantum information processing. In contrast to classical channels, the information-carrying capability of quantum channels is contextua
Externí odkaz:
http://arxiv.org/abs/2305.00680
Publikováno v:
Phys. Rev. A 109, 022247 (2024)
Non-Markovian effects in open quantum system dynamics usually manifest backflow of information from the environment to the system, indicating complete-positive divisibility breaking of the dynamics. We provide a criterion for witnessing such non-Mark
Externí odkaz:
http://arxiv.org/abs/2303.03615
Publikováno v:
Phys. Rev. A 107, 022613 (2023)
Spatial separation restricts the set of locally implementable quantum operations on distributed multipartite quantum systems. We propose that indefinite causal structure arising due to quantum superposition of different space-time geometries can be u
Externí odkaz:
http://arxiv.org/abs/2209.12925
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
Publikováno v:
Phys. Rev. A 106, 042439 (2022)
We explore the fundamental origin of the quantum advantage behind random access code. We propose new temporal inequalities compatible with noninvasive-realist models and show that any non-zero quantum advantage of n bits encoded to 1-bit random acces
Externí odkaz:
http://arxiv.org/abs/2204.05537