Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Marco G. Genoni"'
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-9 (2023)
Abstract Quantum sensing is one of the arenas that exemplifies the superiority of quantum technologies over their classical counterparts. Such superiority, however, can be diminished due to unavoidable noise and decoherence of the probe. Thus, metrol
Externí odkaz:
https://doaj.org/article/7a3f39154f0b46f7bcb3b3cef9e53f37
Publikováno v:
PRX Quantum, Vol 3, Iss 2, p 020310 (2022)
We consider the problem of frequency estimation for a single bosonic field evolving under a squeezing Hamiltonian and continuously monitored via homodyne detection. In particular, we exploit reinforcement learning techniques to devise feedback contro
Externí odkaz:
https://doaj.org/article/d816e82244674adca2ecc70e0501dd2d
Publikováno v:
Entropy, Vol 22, Iss 11, p 1197 (2020)
The estimation of more than one parameter in quantum mechanics is a fundamental problem with relevant practical applications. In fact, the ultimate limits in the achievable estimation precision are ultimately linked with the non-commutativity of diff
Externí odkaz:
https://doaj.org/article/77f3b132f40243b6abd972a29df51079
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033498 (2020)
The dimensionality of a thermometer is key in the design of quantum thermometry schemes. In general, the phenomenology that is typical of qubit-based quantum thermometry does not apply to infinite-dimensional ones. We analyze the dynamical and metrol
Externí odkaz:
https://doaj.org/article/34e6a44ced8349f18aecbb63a2151d0c
Publikováno v:
Quantum, Vol 2, p 110 (2018)
We study quantum frequency estimation for $N$ qubits subjected to independent Markovian noise, via strategies based on time-continuous monitoring of the environment. Both physical intuition and an extended convexity property of the quantum Fisher inf
Externí odkaz:
https://doaj.org/article/24b7c6c325834b75859e8f10886a8698
We study the effect of non-Markovianity in the charging process of an open-system quantum battery. We employ a collisional model framework, where the environment is described by a discrete set of ancillary systems and memory effects in the dynamics c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4014cad62303314142b121424eb10f62
http://arxiv.org/abs/2212.13488
http://arxiv.org/abs/2212.13488
We address the quantum search of a target node on a cycle graph by means of a quantum walk assisted by continuous measurement and feedback. Unlike previous spatial search approaches, where the oracle is described as a projector on the target state, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b650bb60b17a220e0779623fc15a60d
https://hdl.handle.net/2434/945213
https://hdl.handle.net/2434/945213
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 26:1-7
Quantum sensors are among the most promising quantum technologies, allowing to attain the ultimate precision limit for parameter estimation. In order to achieve this, it is required to fully control and optimize what constitutes the hardware part of
Autor:
Abolfazl Bayat, Maria Bondani, Marco G. Genoni, Sibasish Ghosh, Stefano Olivares, Matteo G.A. Paris
Publikováno v:
Physics Letters A. 450:128384
We address the exploitation of an optical parametric oscillator (OPO) in the task of mitigating, at least partially, phase noise produced by phase diffusion. In particular, we analyze two scenarios where phase diffusion is typically present. The firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21a145899172581483608fb34f7be3cc