Zobrazeno 1 - 10
of 897
pro vyhledávání: '"Lopez, Rosa"'
Autor:
Ohnmacht, David Christian, Cuevas, Juan Carlos, Belzig, Wolfgang, López, Rosa, Lim, Jong Soo, Kim, Kun Woo
Quantum conductors attached to metallic reservoirs have been demonstrated to overcome the thermodynamic uncertainty relation (TUR), a trade-off relation between the amount of dissipation and the absence of charge and heat current fluctuations. Here,
Externí odkaz:
http://arxiv.org/abs/2408.01281
Collision is a useful tool for revealing quantum effects and realizing quantum informational tasks. We demonstrate that repeated collisions by itinerant electrons can dissipatively drive two remote spin qubits into an entangled state in a generic col
Externí odkaz:
http://arxiv.org/abs/2407.16029
Publikováno v:
Phys. Rev. Research 6, 013215 (2024)
A heat modulator is proposed based on a voltage-biased Aharonov-Bohm interferometer. Once an electrical bias is applied, Peltier effects give rise to a flow of heat that can be modulated by a magnetic flux. We determine the corresponding temperature
Externí odkaz:
http://arxiv.org/abs/2406.12543
Publikováno v:
Phys. Rev. B 109, 165306 (2024)
Identifying and controlling decoherence in single electron sources (SES) is important for their applications in quantum information processing. The recent experiments with ultrashort electron pulses [J. D. Fletcher et al., Nat. Commun. 10, 5298 (2019
Externí odkaz:
http://arxiv.org/abs/2310.03728
Autor:
Ferri-Cortés, Mar, Almanza-Marrero, Jose A., López, Rosa, Zambrini, Roberta, Manzano, Gonzalo
The thermodynamic behavior of Markovian open quantum systems can be described at the level of fluctuations by using continuous monitoring approaches. However, practical applications require assessing imperfect detection schemes, where the definition
Externí odkaz:
http://arxiv.org/abs/2308.08491
Publikováno v:
SciPost Phys. 16, 094 (2024)
We investigate the quantum transport of the heat and the charge through a quantum dot coupled to fermionic contacts under the influence of time modulation of temperatures. We derive, within the nonequilibrium Keldysh Green's function formalism, gener
Externí odkaz:
http://arxiv.org/abs/2308.03426
Autor:
Manzano, Gonzalo, López, Rosa
Publikováno v:
Phys. Rev. Research 5, 043041 (2023)
When a quantum dot is attached to a metallic reservoir and a superconducting contact Andreev processes leads to a finite subgap current at the normal lead and the creation or destruction of Cooper pairs. Andreev-reflection engines profit from the des
Externí odkaz:
http://arxiv.org/abs/2302.09414
Optimal engine performances are accomplished by quantum effects. Here we explore two routes towards ideal engines, namely (1) quantum systems that operate as hybrid machines being able to perform more than one useful task and (2) the suppression of f
Externí odkaz:
http://arxiv.org/abs/2209.09654
Publikováno v:
Phys. Rev. B 106, 035424 (2022)
The conductance of electrostatic wire junctions in bilayer graphene, classified as trivial-trivial or trivial-topological regarding the confinement character on each junction side, is calculated. The topological side always corresponds to a kink-anti
Externí odkaz:
http://arxiv.org/abs/2207.08430
Autor:
López, Rosa María Cid
Publikováno v:
Historia Social, 2023 Jan 01(105), 119-138.
Externí odkaz:
https://www.jstor.org/stable/48708555