Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Erdman, Paolo A."'
Autor:
Erdman, Paolo Andrea, Czupryniak, Robert, Bhandari, Bibek, Jordan, Andrew N., Noé, Frank, Eisert, Jens, Guarnieri, Giacomo
Feedback control of open quantum systems is of fundamental importance for practical applications in various contexts, ranging from quantum computation to quantum error correction and quantum metrology. Its use in the context of thermodynamics further
Externí odkaz:
http://arxiv.org/abs/2408.15328
Collective effects, such as Dicke superradiant emission, can enhance the performance of a quantum device. Here, we study the heat current flowing between a cold and a hot bath through an ensemble of $N$ qubits, which are collectively coupled to the t
Externí odkaz:
http://arxiv.org/abs/2401.17469
Autor:
Carrega, Matteo, Razzoli, Luca, Erdman, Paolo Andrea, Cavaliere, Fabio, Benenti, Giuliano, Sassetti, Maura
Publikováno v:
AVS Quantum Science 6, 025001 (2024)
Do quantum correlations lead to better performance with respect to several different systems working independently? For quantum thermal machines, the question is whether a working medium (WM) made of $N$ constituents exhibits better performance than
Externí odkaz:
http://arxiv.org/abs/2310.01938
Quantum batteries are energy-storing devices, governed by quantum mechanics, that promise high charging performance thanks to collective effects. Due to its experimental feasibility, the Dicke battery - which comprises $N$ two-level systems coupled t
Externí odkaz:
http://arxiv.org/abs/2212.12397
Publikováno v:
Entropy 2023, 25(2), 204
We investigate coupled-qubit-based thermal machines powered by quantum measurements and feedback. We consider two different versions of the machine: 1) a quantum Maxwell's demon where the coupled-qubit system is connected to a detachable single share
Externí odkaz:
http://arxiv.org/abs/2212.01502
Autor:
Abiuso, Paolo, Erdman, Paolo Andrea, Ronen, Michael, Noé, Frank, Haack, Géraldine, Perarnau-Llobet, Martí
The heat capacity $\mathcal{C}$ of a given probe is a fundamental quantity that determines, among other properties, the maximum precision in temperature estimation. In turn, $\mathcal{C}$ is limited by a quadratic scaling with the number of constitue
Externí odkaz:
http://arxiv.org/abs/2211.01934
Autor:
Mazzoncini, Francesco, Cavina, Vasco, Andolina, Gian Marcello, Erdman, Paolo Andrea, Giovannetti, Vittorio
We investigate the optimal charging processes for several models of quantum batteries, finding how to maximize the energy stored in a given battery with a finite-time modulation of a set of external fields. We approach the problem using advanced tool
Externí odkaz:
http://arxiv.org/abs/2210.04028
Publikováno v:
Phys. Rev. Res. 5, L022017 (2023)
The full optimization of a quantum heat engine requires operating at high power, high efficiency, and high stability (i.e. low power fluctuations). However, these three objectives cannot be simultaneously optimized - as indicated by the so-called the
Externí odkaz:
http://arxiv.org/abs/2207.13104
Autor:
Erdman, Paolo Andrea, Noé, Frank
Publikováno v:
PNAS Nexus 2, pgad248 (2023)
A quantum thermal machine is an open quantum system that enables the conversion between heat and work at the micro or nano-scale. Optimally controlling such out-of-equilibrium systems is a crucial yet challenging task with applications to quantum tec
Externí odkaz:
http://arxiv.org/abs/2204.04785
Obtaining accurate ground and low-lying excited states of electronic systems is crucial in a multitude of important applications. One ab initio method for solving the Schr\"odinger equation that scales favorably for large systems is variational quant
Externí odkaz:
http://arxiv.org/abs/2203.09472