Research PapersNo Access
The effect of electric field on the coherence time of a 2D RbCl parabolic quantum dot qubit
https://doi.org/10.1142/S0217984916502584Cited by:1 (Source: Crossref)
Abstract
The effects of the electric field on the coherence time of a 2D RbCl parabolic quantum dot (PQD) qubit are studied by using the variational method of Pekar type (VMPT) and the Fermi Golden Rule. We calculate the excitation energy of an electron strongly coupled to bulk longitudinal optical (LO) phonons in the 2D RbCl PQD under an applied electric field. The phonon spontaneous emission causes the decoherence of the qubit. The investigated results indicate that the coherence time increases with increasing strength of the electric field and the effective confinement length, whereas it decreases with increasing polaron radius. Our research results would be useful for the design and implementation of the solid-state quantum computation.
PACS: 71.38.-k, 73.21.la, 63.20.kd
