Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Roncaglia, A. J."'
Autor:
Paz, Juan Pablo, Roncaglia, Augusto J.
This is a pedagogical paper where we present a physically motivated approach to introduce the coherent states of a harmonic oscillator from which it is simple to rigorously derive their mathematical definition. We do this in two different ways that t
Externí odkaz:
http://arxiv.org/abs/2410.16483
In recent years there has been growing interest in characterizing the complexity of quantum evolutions of interacting many-body systems. When the dynamics is governed by a time-independent Hamiltonian, Krylov complexity has emerged as a powerful tool
Externí odkaz:
http://arxiv.org/abs/2407.06428
Autor:
Mayo, Franco, Roncaglia, Augusto J.
We study the impact of entangling measurements on the efficiency of quantum measurement- based engines. We first show that for engines comprising many subsystems their efficiency can be enhanced by performing entangling measurements, as opposed to lo
Externí odkaz:
http://arxiv.org/abs/2406.01513
Autor:
Domingo, Laia, Borondo, F., Scialchi, Gastón, Roncaglia, Augusto J., Carlo, Gabriel G., Wisniacki, Diego A.
Quantum reservoir computing algorithms recently emerged as a standout approach in the development of successful methods for the NISQ era, because of its superb performance and compatibility with current quantum devices. By harnessing the properties a
Externí odkaz:
http://arxiv.org/abs/2310.00790
The complexity of quantum evolutions can be understood by examining their dispersion in a chosen basis. Recent research has stressed the fact that the Krylov basis is particularly adept at minimizing this dispersion [V. Balasubramanian et al, Physica
Externí odkaz:
http://arxiv.org/abs/2309.13427
We consider a quantum Otto cycle with an interacting Bose-Einstein condensate at finite temperature. We present a procedure to evolve this system in time in three spatial dimensions, in which closed (adiabatic) strokes are described by the Gross-Pita
Externí odkaz:
http://arxiv.org/abs/2308.12205
Publikováno v:
Entropy 2023, 25, 1439
In this article we introduce a quasiprobability distribution of work that is based on the Wigner function. This construction rests on the idea that the work done on an isolated system can be coherently measured by coupling the system to a quantum mea
Externí odkaz:
http://arxiv.org/abs/2303.08755
Publikováno v:
Phys. Rev. E 107, 064207 (2023)
The out-of-time ordered correlator (OTOC) is a measure of scrambling of quantum information. Scrambling is intuitively considered to be a significant feature of chaotic systems and thus the OTOC is widely used as a measure of chaos. For short times e
Externí odkaz:
http://arxiv.org/abs/2303.08047
Autor:
Mayo, Franco, Roncaglia, Augusto J.
Publikováno v:
Phys. Rev. A 105, 062203 (2022)
We consider the dissipative charging process of quantum batteries in terms of a collisional model, where the batteries are coupled to a heat bath using non-energy preserving interactions. First, we show that for low temperatures the collective proces
Externí odkaz:
http://arxiv.org/abs/2205.06897
Autor:
Perito, Ignacio, Bellomo, Guido, Galicer, Daniel, Figueira, Santiago, Roncaglia, Augusto J., Bendersky, Ariel
Publikováno v:
Phys. Rev. A 103, 062216 (2021)
We present a characterization of the set of non-signaling correlations in terms of a two dimensional representation that involves the maximal value of a Bell functional and the mutual information between the parties. In particular, we apply this repr
Externí odkaz:
http://arxiv.org/abs/2010.04795