Zobrazeno 1 - 10
of 2 419
pro vyhledávání: '"Roccati, A."'
Open quantum systems have complex energy eigenvalues which are expected to follow non-Hermitian random matrix statistics when chaotic, or 2-dimensional (2d) Poisson statistics when integrable. We investigate the spectral properties of a many-body qua
Externí odkaz:
http://arxiv.org/abs/2409.10625
Autor:
Roccati, Federico, Cilluffo, Dario
Publikováno v:
Phys. Rev. Lett. 133, 063603 (2024)
Giant artificial atoms are promising and flexible building blocks for the implementation of analog quantum simulators. They are realized via a multi-local pattern of couplings of two-level systems to a waveguide, or to a two-dimensional photonic bath
Externí odkaz:
http://arxiv.org/abs/2402.15556
Publikováno v:
Phys. Rev. B 109, L140201 (2024)
Strong local disorder in interacting quantum spin chains can turn delocalized eigenmodes into localized eigenstates, giving rise to many-body localized (MBL) phases. This is accompanied by distinct spectral statistics: chaotic for the delocalized pha
Externí odkaz:
http://arxiv.org/abs/2311.16229
Autor:
Roccati, Federico, Bello, Miguel, Gong, Zongping, Ueda, Masahito, Ciccarello, Francesco, Chenu, Aurélia, Carollo, Angelo
Publikováno v:
Nat Commun 15, 2400 (2024)
Light can mediate effective dipole-dipole interactions between atoms or quantum emitters coupled to a common environment. Exploiting them to tailor a desired effective Hamiltonian can have major applications and advance the search for many-body phase
Externí odkaz:
http://arxiv.org/abs/2303.00762
We investigate the behavior of correlations dynamics in a dissipative gain-loss system. First, we consider a setup made of two coupled lossy oscillators, with one of them subject to a local gain. This provides a more realistic platform to implement p
Externí odkaz:
http://arxiv.org/abs/2211.09538
Autor:
Matsoukas-Roubeas, Apollonas S., Roccati, Federico, Cornelius, Julien, Xu, Zhenyu, Chenu, Aurelia, del Campo, Adolfo
Publikováno v:
J. High Energ. Phys. 2023, 60 (2023)
The construction of exactly-solvable models has recently been advanced by considering integrable $T\bar{T}$ deformations and related Hamiltonian deformations in quantum mechanics. We introduce a broader class of non-Hermitian Hamiltonian deformations
Externí odkaz:
http://arxiv.org/abs/2211.05437
Autor:
Jane Alty, Lynette R. Goldberg, Eddy Roccati, Katherine Lawler, Quan Bai, Guan Huang, Aidan D Bindoff, Renjie Li, Xinyi Wang, Rebecca J. St George, Kaylee Rudd, Larissa Bartlett, Jessica M. Collins, Mimieveshiofuo Aiyede, Nadeeshani Fernando, Anju Bhagwat, Julia Giffard, Katharine Salmon, Scott McDonald, Anna E. King, James C. Vickers
Publikováno v:
BMC Neurology, Vol 24, Iss 1, Pp 1-15 (2024)
Abstract Background Dementia prevalence is predicted to triple to 152 million globally by 2050. Alzheimer’s disease (AD) constitutes 70% of cases. There is an urgent need to identify individuals with preclinical AD, a 10–20-year period of progres
Externí odkaz:
https://doaj.org/article/74f6fbaa4eec4ff48e00b119eaf2c298
Autor:
Federico Roccati, Miguel Bello, Zongping Gong, Masahito Ueda, Francesco Ciccarello, Aurélia Chenu, Angelo Carollo
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract As light can mediate interactions between atoms in a photonic environment, engineering it for endowing the photon-mediated Hamiltonian with desired features, like robustness against disorder, is crucial in quantum research. We provide genera
Externí odkaz:
https://doaj.org/article/18bd43d3d1c6448bbe24cfa44c5ce6e0
Autor:
Roccati, Federico, Militello, Benedetto, Fiordilino, Emilio, Iaria, Rosario, Burderi, Luciano, Di Salvo, Tiziana, Ciccarello, Francesco
Publikováno v:
Sci Rep 12, 17641 (2022)
A direct quantization of the Newtonian interaction between two masses is known to establish entanglement, which if detected would witness the quantum nature of the gravitational field. Gravitational interaction is yet compatible also with gravitation
Externí odkaz:
http://arxiv.org/abs/2205.15333
Autor:
Siting Ye, Eddy Roccati, Wei Wang, Zhuoting Zhu, Katerina Kiburg, Yu Huang, Xueli Zhang, Xiayin Zhang, Jiahao Liu, Shulin Tang, Yijun Hu, Zongyuan Ge, Honghua Yu, Mingguang He, Xianwen Shang
Publikováno v:
BMC Neurology, Vol 24, Iss 1, Pp 1-13 (2024)
Abstract Background Little is known regarding the leading risk factors for dementia/Alzheimer’s disease (AD) in individuals with and without APOE4. The identification of key risk factors for dementia/Alzheimer’s disease (AD) in individuals with a
Externí odkaz:
https://doaj.org/article/50c7bb1bfb874c28956750dc36ae0e9e