Coulomb blockade in a non-thermalized quantum dot
arXiv:2306.07122 · doi:10.1103/PhysRevLett.131.206303
Abstract
We investigate non-equilibrium transport properties of a quantum dot in the Coulomb blockade regime under the condition of negligible inelastic scattering during the dwelling time of the electrons in the dot. Using the quantum kinetic equation we show that the absence of thermalization leads to a double-step in the distribution function of electrons on the dot, provided that it is symmetrically coupled to the leads. This drastically changes nonlinear transport through the dot resulting in an additional (compared to the thermalized case) jump in the conductance at voltages close to the charging energy, which could serve as an experimental manifestation of the absence of thermalization.
arXiv comment5 pages, 3 figures, and Supplemental material (4 pages); final version, as published (figures updated and revised discussion and supplemental material)
References in corpus (16)
- Many body localization and thermalization in quantum statistical mechanics
- Metal-insulator transition in a weakly interacting many-electron system with localized single-particle states
- Time-dependent transport in interacting and non-interacting mesoscopic systems
- Observation of many-body localization of interacting fermions in a quasi-random optical lattice
- Interacting electrons in disordered wires: Anderson localization and low-temperature transport
- The Statistical Theory of Quantum Dots
- Quasiparticle Lifetime in a Finite System: A Non--Perturbative Approach
- Quantum Many-Body Scars and Weak Breaking of Ergodicity
- Quantum Effects in Coulomb Blockade
- Recent progress in many-body localization
- Chaos, interactions, and nonequilibrium effects in the tunneling resonance spectra of small metallic particles
- Inelastic Electron Lifetime in Disordered Mesoscopic Systems
- Tunnelling density of states at Coulomb blockade peaks
- Slave-boson Keldysh field theory for the Kondo effect in quantum dots
- Nonequilibrium dephasing in Coulomb blockade quantum dots
- Coulomb staircase in an asymmetrically coupled quantum dot