Zobrazeno 1 - 10
of 12 108
pro vyhledávání: '"Balducci A"'
Autor:
Niedda, Jacopo, Testasecca, Giacomo Bracci, Magnifico, Giuseppe, Balducci, Federico, Vanoni, Carlo, Scardicchio, Antonello
We analyze the spectral properties of the Heisenberg spin-1/2 chain with random fields in light of recent works of the renormalization-group flow of the Anderson model in infinite dimension. We reconstruct the beta function of the order parameter fro
Externí odkaz:
http://arxiv.org/abs/2410.12430
We investigate the efficiency of approximate counterdiabatic driving (CD) in accelerating adiabatic passage through a first-order quantum phase transition. Specifically, we analyze a minimal spin-glass bottleneck model that is analytically tractable
Externí odkaz:
http://arxiv.org/abs/2410.02520
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
In this paper we study existence and regularity of solutions to Dirichlet problems as $$ \begin{cases} - {\rm div}\left(|u|^m\frac{D u}{|D u|}\right) = f & \text{in}\;\Omega,\\ \newline u=0 & \text{on}\;\partial\Omega, \end{cases} $$ where $\Omega$ i
Externí odkaz:
http://arxiv.org/abs/2407.19948
We consider the optimal driving of the ground state of a many-body quantum system across a quantum phase transition in finite time. In this context, excitations caused by the breakdown of adiabaticity can be minimized by adjusting the schedule of the
Externí odkaz:
http://arxiv.org/abs/2407.09596
Autor:
Balducci, Giorgio Tosti, Chen, Boyang, Möller, Matthias, Gerritsma, Marc, De Breuker, Roeland
Modeling open hole failure of composites is a complex task, consisting in a highly nonlinear response with interacting failure modes. Numerical modeling of this phenomenon has traditionally been based on the finite element method, but requires to tra
Externí odkaz:
http://arxiv.org/abs/2405.02903
Autor:
Balducci, Giorgio Tosti, Chen, Boyang
The wide adoption of composite structures in the aerospace industry requires reliable numerical methods to account for the effects of various damage mechanisms, including delamination. Cohesive elements are a versatile and physically representative w
Externí odkaz:
http://arxiv.org/abs/2403.09895
Autor:
Palermo, F., Marrocco, N., Dacomo, L., Grisafi, E., Musella, M., Moresi, V., Sanna, A., Massimi, L., Bukreeva, I., Junemann, O., Viola, I., Eckermann, M., Cloetens, P., Weitkamp, T., Gigli, G., Logroscino, G., de Rosbo, N. Kerlero, Balducci, C., Cedola, A.
Alzheimer's disease (AD), a debilitating neurodegenerative disorder, remains one of the foremost public health challenges of our time. Despite decades of research, its etiology largely remains enigmatic. Recently, attention has turned to the gut-brai
Externí odkaz:
http://arxiv.org/abs/2401.14139
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
This paper explores the potential application of quantum and hybrid quantum-classical neural networks in power flow analysis. Experiments are conducted using two datasets based on 4-bus and 33-bus test systems. A systematic performance comparison is
Externí odkaz:
http://arxiv.org/abs/2311.06293