Volume 129, Number 3, February 2020
|Number of page(s)||7|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||27 February 2020|
Coherent population oscillations and an effective spin-exchange interaction in a symmetric polariton mixture
1 Materials Science Department, School of Natural Sciences, University of Patras - GR-26504 Patras, Greece
2 Hellenic American University - 436 Amherst st, Nashua, NH 0306 USA
3 Institute of Electronic Structure and Laser, FORTH - GR-70013 Heraklion, Crete, Greece
4 A. Alikhanian National Science Laboratory - 0036 Yerevan, Armenia
Received: 13 August 2019
Accepted: 11 February 2020
We study a two-species mixture of exciton-polaritons with self- and cross-interaction nonlinearities in a double-well structure, in the presence of relaxation and continuous pumping. We identify the conditions that render the system parity-time symmetric, and investigate its dynamic and static properties. We show that the system can exhibit long-term coherent oscillations of populations of the two polaritonic components between the two potential wells, and can simulate the dynamics of a pair of spin-1/2 particles (qubits) in the presence of exchange interaction.
PACS: 71.36.+c – Polaritons (including photon-phonon and photon-magnon interactions) / 11.30.Er – Charge conjugation, parity, time reversal, and other discrete symmetries / 03.67.-a – Quantum information
© EPLA, 2020
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.