Transport properties of double quantum dots with electron-phonon coupling

Abstract

We study transport through a double quantum dot system in which each quantum dot is coupled to a phonon mode. Such a system can be realized, e.g., using a suspended carbon nanotube. We find that the interplay between strong electron-phonon coupling and inter-dot tunneling can lead to a negative differential conductance at bias voltages exceeding the phonon frequency. Various transport properties are discussed, and we explain the physics of the occurrence of negative differential conductance in this system.

7.5 pages, 8 figures

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Cited by in corpus (11)

• Quantum Engines and Refrigerators
• Vibrational effects in charge transport through a molecular double quantum dot
• Thermodynamics of the polaron master equation at finite bias
• Quantum entanglement driven by electron-vibrational mode coupling
• Entanglement Generation Between Two Mechanical Resonators in Two Optomechanical Cavities
• Mechanically induced two-qubit gates and maximally entangled states for single electron spins in a carbon nanotube
• Charge-vibration interaction effects in normal-superconductor quantum dots
• Thermal rectification in a double quantum dots system with polaron effect
• Finite frequency current noise in the Holstein model
• Vibrational assisted conduction in a molecular wire
• Generation of entanglement between quantum dot molecule with the presence of phonon effects in a voltage-controlled junction