Bosonic thermoelectric transport and breakdown of universality

Abstract

In this paper we compare Bose transport in normal phase atomic gases with its counterpart in Fermi gases, illustrating the non-universality of two dimensional bosonic transport associated with different dissipation mechanisms. Near the superfluid transition temperature $T_c$, a striking similarity between the fermionic and bosonic transport emerges because super-conducting(fluid) fluctuation transport for Fermi gases is dominated by the bosonic, Cooper pair component. As in fluctuation theory, one finds that the Seebeck coefficient changes sign at $T_c$ and the Lorenz number approaches zero at $T_c$. Our findings appear semi-quantitatively consistent with recent Bose gas experiments.

v3: longer version 8 pages, 3 figures

References in corpus (12)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Universal Quantum Viscosity in a Unitary Fermi Gas
• A thermoelectric heat engine with ultracold atoms
• Observation of scale invariance and universality in two-dimensional Bose gases
• Universal dynamics of a degenerate unitary Bose gas
• Observing the Drop of Resistance in the Flow of a Superfluid Fermi Gas
• Is a gas of strongly interacting atomic fermions a nearly perfect fluid?
• Universal thermodynamics of a two-dimensional Bose gas
• Microscopic Approach to Shear Viscosities in Superfluid Gases: From BCS to BEC
• Quench Dynamics in Bose condensates in the Presence of a Bath: Theory and Experiment
• Dynamics of harmonically confined systems: some rigorous results

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• Coulomb drag and counterflow Seebeck coefficient in bilayer-graphene double layers
• Violation of the Wiedemann-Franz Law for ultracold atomic gases
• Interaction-Assisted Reversal of Thermopower with Ultracold Atoms
• Enhanced thermoelectric coupling near electronic phase transition: the role of fluctuation Cooper pairs
• Quantized conductance through the quantum evaporation of bosonic atoms
• Spin-heat relaxation and thermo-spin diffusion in atomic Bose and Fermi gases
• The thermoelectric conversion efficiency problem: Insights from the electron gas thermodynamics close to a phase transition