Zobrazeno 1 - 10
of 336
pro vyhledávání: '"Santoro, P. E."'
Autor:
Salatino, Giulia, Passarelli, Gianluca, Russomanno, Angelo, Santoro, Giuseppe E., Lucignano, Procolo, Fazio, Rosario
We investigate the topological properties of the Su-Schrieffer-Heeger (SSH) model under dissipative dynamics using the quantum trajectory approach. Our study explores the preservation or breakdown of topological edge states, particularly focusing on
Externí odkaz:
http://arxiv.org/abs/2411.05671
Publikováno v:
Physical Review A 108 (3), 032219 (2023)
The Kuramoto model serves as a paradigm for describing spontaneous synchronization in a system of classical interacting rotors. In this study, we extend this model to the quantum domain by coupling quantum interacting rotors to external baths followi
Externí odkaz:
http://arxiv.org/abs/2306.09956
Autor:
Piccioni, Davide, Apostoli, Christian, Becca, Federico, Mazzola, Guglielmo, Parola, Alberto, Sorella, Sandro, Santoro, Giuseppe E.
Publikováno v:
Phys. Rev. B 108, 104417 (2023)
We show that a two-body Jastrow wave function is able to capture the ground-state properties of the $S=1$ antiferromagnetic Heisenberg chain with the single-ion anisotropy term, in both the topological and trivial phases. Here, the optimized Jastrow
Externí odkaz:
http://arxiv.org/abs/2305.14162
Autor:
Rattacaso, Davide, Passarelli, Gianluca, Russomanno, Angelo, Lucignano, Procolo, Santoro, Giuseppe E., Fazio, Rosario
Publikováno v:
Phys. Rev. Lett. 132, 160401 (2024)
Finding a local Hamiltonian $\hat{\mathcal{H}}$ having a given many-body wavefunction $|\psi\rangle$ as its ground state, i.e. a parent Hamiltonian, is a challenge of fundamental importance in quantum technologies. Here we introduce a numerical metho
Externí odkaz:
http://arxiv.org/abs/2303.11200
Publikováno v:
SciPost Phys. 14, 117 (2023)
Quantum Annealing (QA) is one of the most promising frameworks for quantum optimization. Here, we focus on the problem of minimizing complex classical cost functions associated with prototypical discrete neural networks, specifically the paradigmatic
Externí odkaz:
http://arxiv.org/abs/2208.14468
The cyclic sudden switching of a magnetic impurity from Kondo to a non-Kondo state and back was recently shown to involve an important dissipation of the order of several $k_BT_K$ per cycle. The possibility to reveal this and other electronic process
Externí odkaz:
http://arxiv.org/abs/2205.09789
We consider the two-dimensional quantum Ising model, in absence of disorder, subject to periodic imperfect global spin flips. We show by a combination of exact diagonalization and tensor-network methods that the system can sustain a spontaneously bro
Externí odkaz:
http://arxiv.org/abs/2205.04865
Autor:
Lumia, Luca, Torta, Pietro, Mbeng, Glen B., Santoro, Giuseppe E., Ercolessi, Elisa, Burrello, Michele, Wauters, Matteo M.
We propose an implementation of a two-dimensional $\mathbb{Z}_2$ lattice gauge theory model on a shallow quantum circuit, involving a number of single and two-qubits gates comparable to what can be achieved with present-day and near-future technologi
Externí odkaz:
http://arxiv.org/abs/2112.11787
We apply digitized Quantum Annealing (QA) and Quantum Approximate Optimization Algorithm (QAOA) to a paradigmatic task of supervised learning in artificial neural networks: the optimization of synaptic weights for the binary perceptron. At variance w
Externí odkaz:
http://arxiv.org/abs/2112.10219
Autor:
Kohn, Lucas, Santoro, Giuseppe E.
We study the dynamics of the quenched Anderson model at finite temperature using matrix product states. Exploiting a chain mapping for the electron bath, we investigate the entanglement structure in the MPS for various orderings of the two chains, wh
Externí odkaz:
http://arxiv.org/abs/2107.02807