Zobrazeno 1 - 10
of 1 158
pro vyhledávání: '"P Chesi"'
Autor:
Su, Yupeng, Guan, Ziyi, Liu, Xiaoqun, Jin, Tianlai, Wu, Dongkuan, Chesi, Graziano, Wong, Ngai, Yu, Hao
Large language models (LLMs) have grown significantly in scale, leading to a critical need for efficient model pruning techniques. Existing post-training pruning techniques primarily focus on measuring weight importance on converged dense models to d
Externí odkaz:
http://arxiv.org/abs/2408.10631
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
We consider generating maximally entangled states (Bell states) between two qubits coupled to a common bosonic mode, based on f-STIRAP. Utilizing the systematic approach developed in New J. Phys. 19 093016 (2017), we quantify the effects of non-adiab
Externí odkaz:
http://arxiv.org/abs/2403.09381
We discuss a general formalism to optimize quasi-adiabatic state-transfer protocols, where high fidelity is achieved by maintaining the system in a dark subspace protected from the dominant dissipative channels. We cast the residual fidelity loss, in
Externí odkaz:
http://arxiv.org/abs/2402.12807
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
Autor:
L De Franceschi, C Galvani, G Ruffo, R Colombatti, G Graziadei, G Palazzi, D Venturelli, G Forni, A Quota, A Scopinaro, R Vindigni, M Zini, P Chesi, L Reale
Publikováno v:
HemaSphere, Vol 6, Pp 32-32 (2022)
Externí odkaz:
https://doaj.org/article/b5b75be0975b4e3b9cfed10af1291ebe
We investigate the dissipative phase transitions of the anisotropic quantum Rabi model with cavity decay and demonstrate that large spin fluctuations persist in the stationary state, having important consequences on the phase diagram and the critical
Externí odkaz:
http://arxiv.org/abs/2312.06376
Autor:
Li, Jiahui, Chesi, Stefano
We study the complex nonlinear dynamics of the two-photon Dicke model in the semiclassical limit by considering cavity and qubit dissipation. In addition to the normal and super-radiant phases, another phase that contains abundant chaos-related pheno
Externí odkaz:
http://arxiv.org/abs/2310.20206
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
In this study, we explore the dynamics of entanglement in an ensemble of three-level systems with a lambda-type level structure interacting with single-mode bosons. Our investigation focuses on zero-energy states within the subspace of totally symmet
Externí odkaz:
http://arxiv.org/abs/2309.01054