Pulse-induced acoustoelectric vibrations in surface-gated GaAs-based quantum devices
arXiv:quant-ph/0605160 · doi:10.1103/PhysRevB.75.205303
Abstract
We present the results of a numerical investigation which show the excitation of acoustoelectric modes of vibration in GaAs-based heterostructures due to sharp nano-second electric-field pulses applied across surface gates. In particular, we show that the pulses applied in quantum information processing applications are capable of exciting acoustoelectric modes of vibration including surface acoustic modes which propagate for distances greater than conventional device dimensions. We show that the pulse-induced acoustoelectric vibrations are capable of inducing significant undesired perturbations to the evolution of quantum systems.
To be published in Phys. Rev. B
References in corpus (13)
- Quantum Computation with Quantum Dots
- Single-shot read-out of an individual electron spin in a quantum dot
- Coherent manipulation of electronic states in a double quantum dot
- Charge-qubit operation of an isolated double quantum dot
- Quantum computation using electrons trapped by surface acoustic waves
- Spontaneous emission of phonons by coupled quantum dots
- Coupling of Surface Acoustic Waves to a Two Dimensional Electron Gas
- Surface Acoustic Wave induced Transport in a Double Quantum Dot
- Quantized charge pumping through a quantum dot by surface acoustic waves
- Inelastic tunneling in a double quantum dot coupled to a bosonic environment
- A numerical investigation of a piezoelectric surface acoustic wave interaction with a one-dimensional channel
- Parity measurement of one- and two-electron double well systems
- A finite element analysis of a silicon based double quantum dot structure