RT Journal Article
T1 Thermalization and Dephasing in Collisional Reservoirs
A1 Tabanera Bravo, Jorge
A1 Rodríguez Parrondo, Juan Manuel
A1 Esposito, Massimiliano
A1 Barra, Felipe
AB We introduce a wide class of quantum maps that arise in collisional reservoirs and are able to thermalize a system if they operate in conjunction with an additional dephasing mechanism. These maps describe the effect of collisions and induce transitions between populations that obey detailed balance, but also create coherences that prevent the system from thermalizing. We combine these maps with a unitary evolution acting during random Poissonian times between collisions and causing dephasing. We find that, at a low collision rate, the nontrivial combination of these two effects causes thermalization in the system. This scenario is suitable for modeling collisional reservoirs at equilibrium. We justify this claim by identifying the conditions for such maps to arise within a scattering theory approach and provide a thorough characterization of the resulting thermalization process.
PB American Physical Society
SN 0031-9007
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/97910
UL https://hdl.handle.net/20.500.14352/97910
LA eng
NO Tabanera-Bravo, Jorge, et al. «Thermalization and Dephasing in Collisional Reservoirs». Physical Review Letters, vol. 130, n.o 20, mayo de 2023, p. 200402. https://doi.org/10.1103/PhysRevLett.130.200402.
NO Ministerio de Ciencia e Innovación (España) 
NO Foundational Questions Institute Fund
DS Docta Complutense
RD 5 abr 2025