Nonequilibrium relaxation transport of ultracold atoms

Abstract

We analyze the equilibration process between two either fermionic or bosonic reservoirs containing ultracold atoms with a fixed total number of particles that are weakly connected via a few-level quantum system. We allow for both the temperatures and particle densities of the reservoirs to evolve in time. Subsequently, linearizing the resulting equations enables us to characterize the equilibration process and its time scales in terms of equilibrium reservoir properties and linear-response transport coefficients. Additionally, we investigate the use of such a device as particle transistor or particle capacitor and analyze its efficiency.

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• Quantum thermodynamic devices: from theoretical proposals to experimental reality
• Stochastic thermodynamics of rapidly driven systems
• Relaxation Dynamics of Meso-Reservoirs
• Challenges and constraints of dynamically emerged source and sink in atomtronic circuits: From closed-system to open-system approaches
• Coherent Long-Range Thermoelectrics in Nonadiabatic Driven Quantum Systems
• Quantum states from mixtures of equilibrium distributions
• Quantum transport between finite reservoirs