Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Llobet, Martí"'
Autor:
Aggarwal, Kushagra, Rolandi, Alberto, Yang, Yikai, Hickie, Joseph, Jirovec, Daniel, Ballabio, Andrea, Chrastina, Daniel, Isella, Giovanni, Mitchison, Mark T., Perarnau-Llobet, Martí, Ares, Natalia
The conversion of thermal energy into work is usually more efficient in the slow-driving regime, where the power output is vanishingly small. Efficient work extraction for fast driving protocols remains an outstanding challenge at the nanoscale, wher
Externí odkaz:
http://arxiv.org/abs/2412.06916
Autor:
Puig, Ricard, Sekatski, Pavel, Erdman, Paolo Andrea, Abiuso, Paolo, Calsamiglia, John, Perarnau-Llobet, Martí
We consider the estimation of an unknown parameter $\theta$ via a many-body probe. The probe is initially prepared in a product state and many-body interactions enhance its $\theta$-sensitivity during the dynamics and/or in the steady state. We prese
Externí odkaz:
http://arxiv.org/abs/2412.02754
Autor:
Bartosik, Patryk-Lipka, Donatella, Kaelan, Aifer, Maxwell, Melanson, Denis, Perarnau-Llobet, Marti, Brunner, Nicolas, Coles, Patrick J.
Thermodynamic computing has emerged as a promising paradigm for accelerating computation by harnessing the thermalization properties of physical systems. This work introduces a novel approach to solving quadratic programming problems using thermodyna
Externí odkaz:
http://arxiv.org/abs/2411.14224
We explore the fundamental limits on thermodynamic irreversibility when cooling a quantum system in the presence of a finite-size reservoir. First, we prove that for any non-interacting $n$-particle reservoir, the entropy production $\Sigma$ decays a
Externí odkaz:
http://arxiv.org/abs/2411.00944
Autor:
Taranto, Philip, Lipka-Bartosik, Patryk, Rodríguez-Briones, Nayeli A., Perarnau-Llobet, Martí, Friis, Nicolai, Huber, Marcus, Bakhshinezhad, Pharnam
Landauer's universal limit on heat dissipation during information erasure becomes increasingly crucial as computing devices shrink: minimising heat-induced errors demands optimal pure-state preparation. For this, however, Nernst's third law posits an
Externí odkaz:
http://arxiv.org/abs/2404.06649
We consider the estimation of an unknown parameter $\theta$ through a quantum probe at thermal equilibrium. The probe is assumed to be in a Gibbs state according to its Hamiltonian $H_\theta$, which is divided in a parameter-encoding term $H^{\rm P}_
Externí odkaz:
http://arxiv.org/abs/2402.06582
Publikováno v:
New J. Phys. 26 (2024) 013046
We characterise the measurement sensitivity, quantified by the Quantum Fisher Information (QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest, a fermionic bath, at temperature $T$. For nonequilibrium protocols,
Externí odkaz:
http://arxiv.org/abs/2310.14655
We develop a physics-based model for classical computation based on autonomous quantum thermal machines. These machines consist of few interacting quantum bits (qubits) connected to several environments at different temperatures. Heat flows through t
Externí odkaz:
http://arxiv.org/abs/2308.15905
Autor:
Boeyens, Julia, Annby-Andersson, Björn, Bakhshinezhad, Pharnam, Haack, Géraldine, Perarnau-Llobet, Martí, Nimmrichter, Stefan, Potts, Patrick P., Mehboudi, Mohammad
Publikováno v:
New J. Phys. 25, 123009 (2023)
Temperature estimation plays a vital role across natural sciences. A standard approach is provided by probe thermometry, where a probe is brought into contact with the sample and examined after a certain amount of time has passed. In many situations
Externí odkaz:
http://arxiv.org/abs/2307.13407
A central task in finite-time thermodynamics is to minimize the excess or dissipated work $W_{\rm diss}$ when manipulating the state of a system immersed in a thermal bath. We consider this task for an $N$-body system whose constituents are identical
Externí odkaz:
http://arxiv.org/abs/2306.16534