RT Journal Article
T1 Bichromatically-controlled entanglement between asymmetric quantum dots in a photonic cavity
A1 Antón Revilla, Miguel Ángel
A1 Gonzalo Fonrodona, Isabel
A1 Carreño Sánchez, Fernando
AB Entanglement generation and control of two spatially separated asymmetric quantum dots with broken inversion symmetry and mediated by a photonic cavity is studied using a quantum master equation formalism. The quantum dots are coherently driven by a bichromatic laser consisting of a strong optical field nearly resonant with the optical transition of each quantum dot, and a low frequency field. The optical field dresses each quantum dot, and due to the presence of large permanent dipole moments in the quantum dots they are coupled by the low frequency field. We make use of the generated dressed-state scheme for entanglement control. The master equation which describes the interaction with the cavity modes and the coherent fields is numerically solved. In order to gain some insight on the role of the external parameters on entanglement, an effective Hamiltonian for the atomic subsystem is derived in the dressed state representation by adiabatically eliminating the cavity field operators. It is found that steady-state entanglement can be controlled by means of the amplitude and frequency of the low frequency field.
PB IOP Publishing
SN 0953-4075
YR 2021
FD 2021-01-16
LK https://hdl.handle.net/20.500.14352/7784
UL https://hdl.handle.net/20.500.14352/7784
LA eng
NO © 2020 IOP Publishing Ltd.The authors acknowledge funding through project FIS2017-87360-P (MICINN). I. Gonzalo also acknowledges the support from project FIS2016-76110-P (MICINN).
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 11 abr 2025