Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Cavazzoni, Simone"'
Routing classical and quantum information is a fundamental task for most quantum information technologies and processes. Here, we consider information encoded in the position of a quantum walker on a graph, and design an optimal structure to achieve
Externí odkaz:
http://arxiv.org/abs/2406.11834
We examine metrological scenarios where the parameter of interest is encoded onto a quantum state through the action of a noisy quantum gate and investigate the ultimate bound to precision by analyzing the behaviour of the Quantum Fisher Information
Externí odkaz:
http://arxiv.org/abs/2406.01590
We address quantum metrology in critical spin chains with anisotropy and Dzyaloshinskii-Moriya (DM) interaction, and show how local and quasi-local measurements may be exploited to characterize global properties of the systems. In particular, we eval
Externí odkaz:
http://arxiv.org/abs/2405.20296
Discrete-time quantum walk (DTQW) represents a convenient mathematical framework for describing the motion of a particle on a discrete set of positions when this motion is conditioned by the values of certain internal degrees of freedom, which are us
Externí odkaz:
http://arxiv.org/abs/2405.17354
We address quantum characterization of anisotropic spin chains in the presence of antisymmetric exchange, and investigate whether the Hamiltonian parameters of the chain may be estimated with precision approaching the ultimate limit imposed by quantu
Externí odkaz:
http://arxiv.org/abs/2401.14479
We address metrological problems where the parameter of interest is encoded in the internal degree of freedom of a discrete-time quantum walker, and provide evidence that coin dimensionality is a potential resource to enhance precision. In particular
Externí odkaz:
http://arxiv.org/abs/2311.00171
Publikováno v:
Phys. Rev. E 106, 024118 (2022)
Coherent transport of an excitation through a network corresponds to continuous-time quantum walk on a graph, and the transport properties of the system may be radically different depending on the graph and on the initial state. The transport efficie
Externí odkaz:
http://arxiv.org/abs/2205.09408
Publikováno v:
Phys. Rev. A 102, 042214 (2020)
We address the properties of continuous-time quantum walks with Hamiltonians of the form $\mathcal{H}= L + \lambda L^2$, being $L$ the Laplacian matrix of the underlying graph and being the perturbation $\lambda L^2$ motivated by its potential use to
Externí odkaz:
http://arxiv.org/abs/2005.06351
Akademický článek
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Autor:
Adani M; Center for Cyber-Physical Systems (C2PS), Khalifa University, Abu Dhabi, 127788, United Arab Emirates.; Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, 41125, Modena, Italy., Cavazzoni S; Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, 41125, Modena, Italy., Teklu B; Center for Cyber-Physical Systems (C2PS), Khalifa University, Abu Dhabi, 127788, United Arab Emirates.; Department of Mathematics, College of Computing and Mathematical Sciences, Khalifa University, 127788, Abu Dhabi, United Arab Emirates., Bordone P; Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, 41125, Modena, Italy.; Centro S3, CNR-Istituto di Nanoscienze, 41125, Modena, Italy., Paris MGA; Quantum Technology Lab, Università degli Studi di Milano, 20133, Milan, Italy. matteo.paris@fisica.unimi.it.
Publikováno v:
Scientific reports [Sci Rep] 2024 Aug 27; Vol. 14 (1), pp. 19933. Date of Electronic Publication: 2024 Aug 27.
