Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Chesi Giovanni"'
Autor:
Grasselli, Federico, Chesi, Giovanni, Walk, Nathan, Kampermann, Hermann, Widomski, Adam, Ogrodnik, Maciej, Karpiński, Michał, Macchiavello, Chiara, Bruß, Dagmar, Wyderka, Nikolai
Quantum Key Distribution (QKD) is a promising technology for secure communication. Nevertheless, QKD is still treated with caution in certain contexts due to potential gaps between theoretical models and actual QKD implementations. A common assumptio
Externí odkaz:
http://arxiv.org/abs/2411.19874
Autor:
Serino, Laura, Chesi, Giovanni, Brecht, Benjamin, Maccone, Lorenzo, Macchiavello, Chiara, Silberhorn, Christine
We show that the amount of complementarity that a quantum system can exhibit depends on which complementary properties one is considering. Consider a set of mutually unbiased bases (MUBs) which corresponds to the spectral decomposition of some maxima
Externí odkaz:
http://arxiv.org/abs/2406.11395
Autor:
Chesi, Giovanni
Publikováno v:
Phys. Lett. A 492, 129233 (2023)
We address the quantum dynamics of second harmonic generation with a perturbative approach. By inspecting the Taylor expansion of the unitary evolution, we identify the subsequent application of annihilation and creation operators as elementary proce
Externí odkaz:
http://arxiv.org/abs/2402.10598
Publikováno v:
Entropy 25, 1528 (2023)
We study the work fluctuations in ergotropic heat engines, namely two-strokes quantum Otto engines where the work stroke is designed to extract the ergotropy (the maximum amount of work by a cyclic unitary evolution) from a couple of quantum systems
Externí odkaz:
http://arxiv.org/abs/2310.10344
Publikováno v:
EPJ Web of Conferences, Vol 230, p 00002 (2020)
The search for optimal receivers endowed with photon-number-resolving capability has led us to consider Silicon photomultipliers for Quantum Optics experiments. By adopting an optimization procedure in order to reduce the spurious effects characteriz
Externí odkaz:
https://doaj.org/article/248a54b52b914ec4959a96bf57aa2d32
Global estimation strategies allow to extract information on a phase or a set of phases without any prior knowledge, which is, instead, required for local estimation strategies. We devise a global multiphase protocol based on Holevo's estimation theo
Externí odkaz:
http://arxiv.org/abs/2301.07380
Publikováno v:
Phys. Rev. A 107, 022431 (2023)
Recent progress in quantum optics has led to setups that are able to prepare high-dimensional quantum states for quantum information processing tasks. As such, it is of importance to benchmark the states generated by these setups in terms of their qu
Externí odkaz:
http://arxiv.org/abs/2210.05272
We investigate the additivity properties for both bipartite and multipartite systems by using entropic uncertainty relations (EUR) defined in terms of the joint Shannon entropy of probabilities of local measurement outcomes. In particular, we introdu
Externí odkaz:
http://arxiv.org/abs/2207.13469
The calculation of autocorrelation functions represents a routinely used tool to characterise quantum states of light. In this paper, we evaluate the $g^{(2)}$ function for detected photons in the case of mesoscopic multi-mode twin-beam states in ord
Externí odkaz:
http://arxiv.org/abs/1812.03088
Autor:
Chesi, Giovanni, Malinverno, Luca, Allevi, Alessia, Santoro, Romualdo, Caccia, Massimo, Martemiyanov, Alexander, Bondani, Maria
Silicon Photomultipliers are potentially ideal detectors for Quantum Optics and Quantum Information studies based on mesoscopic states of light. However, their non-idealities hampered their use so far. An optimal mode of operation has been developed
Externí odkaz:
http://arxiv.org/abs/1812.02555