111 citations · 336 across the 19 of their papers we have counts for
19 papers
Optimal work-to-work conversion of a nonlinear quantum brownian duet
Matteo Carrega, Maura Sassetti, Ulrich Weiss
Performances of work-to-work conversion are studied for a dissipative nonlinear quantum system with two isochromatic phase-shifted drives. It is shown that for weak Ohmic damping s…
Energy exchange in driven open quantum systems at strong coupling
Matteo Carrega, Paolo Solinas, Maura Sassetti +1
The time-dependent energy transfer in a driven quantum system strongly coupled to a heat bath is studied within an influence functional approach. Exact formal expressions for the s…
Anomalies in the specific heat of a free damped particle: The role of the cutoff in the spectral density of the coupling
Benjamin Spreng, Gert-Ludwig Ingold, Ulrich Weiss
The properties of a dissipative system depend on the spectral density of the coupling to the environment. Mostly, the dependence on the low-frequency behavior is in the focus of in…
Thermodynamic anomalies in the presence of dissipation: from the free particle to the harmonic oscillator
Robert Adamietz, Gert-Ludwig Ingold, Ulrich Weiss
A free particle coupled to a heat bath can exhibit a number of thermodynamic anomalies like a negative specific heat or reentrant classicality. These low-temperature phenomena are…
Reentrant classicality of a damped system
Benjamin Spreng, Gert-Ludwig Ingold, Ulrich Weiss
For a free particle, the coupling to its environment can be the relevant mechanism to induce quantum behavior as the temperature is lowered. We study general linear environments wi…
Dynamics of coupled spins in the white- and quantum-noise regime
Peter Nägele, Ulrich Weiss
We study the dynamics of dissipative spins for general spin-spin coupling. We investigate the population dynamics and relaxation of the purity in the white noise regime, in which e…