Probing confined phonon modes by transport through a nanowire double quantum dot

Abstract

Strong radial confinement in semiconductor nanowires leads to modified electronic and phononic energy spectra. We analyze the current response to the interplay between quantum confinement effects of the electron and phonon systems in a gate-defined double quantum dot in a semiconductor nanowire. We show that current spectroscopy of inelastic transitions between the two quantum dots can be used as an experimental probe of the confined phonon environment. The resulting discrete peak structure in the measurements is explained by theoretical modeling of the confined phonon mode spectrum, where the piezoelectric coupling is of crucial importance.

4 pages, 4 figures; final version

References in corpus (6)

• Direct Measurement of the Spin-Orbit Interaction in a Two-Electron InAs Nanowire Quantum Dot
• Importance of second-order piezoelectric effects in zincblende semiconductors
• Non-Markovian decoherence of localized nanotube excitons by acoustic phonons
• Probing confined phonon modes by transport through a nanowire double quantum dot
• Zero-phonon linewidth and phonon satellites in the optical absorption of nanowire-based quantum dots
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• Coherent Electron-Phonon Coupling in Tailored Quantum Systems
• Microwave detection of electron-phonon interactions in a cavity-coupled double quantum dot
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• Spin-orbit effects in nanowire-based wurtzite semiconductor quantum dots
• Stimulated Phonon Emission in a Driven Double Quantum Dot
• Dynamical Steady-States in Driven Quantum Systems
• Photon statistics of a double quantum dot micromaser: Quantum treatment
• Phonon-mediated decoherence in triple quantum dot interferometers
• Probing electron-phonon interactions in the charge-photon dynamics of cavity-coupled double quantum dots
• Tunable photonic cavity coupled to a voltage-biased double quantum dot system: Diagrammatic NEGF approach
• Sisyphus Thermalization of Photons in a Cavity-Coupled Double Quantum Dot
• Optimal control of universal quantum gates in a double quantum dot
• Heat flow in InAs/InP heterostructure nanowires
• Transport in serial spinful multiple-dot systems: The role of electron-electron interactions and coherences
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• Unique Electron Spin Relaxation Induced by Confined Phonons in Nanowire-Based Quantum Dots
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• Equivalence between the second order steady state for the spin-Boson model and its quantum mean force Gibbs state
• Nonclassical radiation from a nonlinear oscillator driven solely by classical $1/f$ noise
• Phonon induced optical gain in a current carrying two-level quantum dot
• Phonon-assisted transport and hole-phonon coupling in GaAs double quantum dots