Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Brosco, Valentina"'
Critical systems represent a valuable resource in quantum sensing and metrology. Critical quantum sensing (CQS) protocols can be realized using finite-component phase transitions, where criticality is not due to the thermodynamic limit but rather to
Externí odkaz:
http://arxiv.org/abs/2407.18055
Van der Waals assembly allows for the creation of Josephson junctions in an atomically sharp interface between two exfoliated Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ (Bi-2212) flakes that are twisted relative to each other. In a narrow range of angles clo
Externí odkaz:
http://arxiv.org/abs/2405.03454
Publikováno v:
npj Quantum Inf 10, 44 (2024)
The rate and security of quantum communications between users placed at arbitrary points of a quantum communication network depend on the structure of the network, on its extension and on the nature of the communication channels. In this work we prop
Externí odkaz:
http://arxiv.org/abs/2312.04221
Autor:
Saggau, Christian N., Shokri, Sanaz, Martini, Mickey, Confalone, Tommaso, Lee, Yejin, Wolf, Daniel, Gu, Genda, Brosco, Valentina, Montemurro, Domenico, Vinokur, Valerii M., Nielsch, Kornelius, Poccia, Nicola
Publikováno v:
ACS Appl. Mater. Interfaces 2023
Inherent properties of superconducting Bi2Sr2CaCu2O8+x films, such as the high superconducting transition temperature Tc, efficient Josephson coupling between neighboring CuO layers, and fast quasiparticle relaxation dynamics, make them a promising p
Externí odkaz:
http://arxiv.org/abs/2311.00602
Publikováno v:
Phys. Rev. B 108, 104508 - Published 29 September 2023
We investigate the possibility to employ magnetic Josephson junctions as magnetic-noise detectors. To illustrate our idea, we consider a system consisting of a quantum dot coupled to superconducting leads in the presence of an external magnetic field
Externí odkaz:
http://arxiv.org/abs/2308.01995
Van-der-Waals (vdW) assembly enables the fabrication of novel Josephson junctions utilizing an atomically sharp interface between two exfoliated and relatively twisted $\rm{Bi_2Sr_2CaCu_2O_{8+x}}$ (Bi2212) flakes. In a range of twist angles around $4
Externí odkaz:
http://arxiv.org/abs/2308.00839
Autor:
Ahmad, Halima Giovanna, Brosco, Valentina, Miano, Alessandro, Di Palma, Luigi, Arzeo, Marco, Montemurro, Domenico, Lucignano, Procolo, Pepe, Giovanni Piero, Tafuri, Francesco, Fazio, Rosario, Massarotti, Davide
We propose to exploit currently available tunnel ferromagnetic Josephson junctions to realize a hybrid superconducting qubit. We show that the characteristic hysteretic behavior of the ferromagnetic barrier provides an alternative and intrinsically d
Externí odkaz:
http://arxiv.org/abs/2206.00715
Publikováno v:
Phys. Rev. A 103, 063518 (2021)
Non-abelian gauge fields emerge naturally in the description of adiabatically evolving quantum systems having degenerate levels. Here we show that they also play a role in Thouless pumping in the presence of degenerate bands. To this end we consider
Externí odkaz:
http://arxiv.org/abs/2010.15159
Publikováno v:
Nano Lett., 2018, 18 (3), pp 2158-2164
We demonstrate that hexagonal graphene nanoflakes with zigzag edges display quantum interference (QI) patterns analogous to benzene molecular junctions. In contrast with graphene sheets, these nanoflakes also host magnetism. The cooperative effect of
Externí odkaz:
http://arxiv.org/abs/1902.08988
Autor:
Brosco, Valentina, Capone, Massimo
Publikováno v:
Phys. Rev. B 101, 235149 (2020)
The recent discovery of materials featuring strong Rashba spin-orbit coupling (RSOC) and strong electronic correlation raises questions about the interplay of Mott and Rashba physics. In this work, we employ cluster perturbation theory to investigate
Externí odkaz:
http://arxiv.org/abs/1811.12034