IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Exceptional Points in hybrid hamiltonians: non-exponentional decay.
Autor/es:
REBOIRO, M
Lugar:
Buenos Aires
Reunión:
Congreso; XXI Giambiagi Winter School; 2019
Institución organizadora:
Universidad Nacional de Buenos Aires
Resumen:
We study the appearance of Exceptional Points in a hybrid system composed of a superconducting flux-qubit and an ensemble of nitrogen-vacancy colour centres in diamond. We discuss the possibility of controlling the generation of Exceptional Points, by the analysis of the model space parameters. One of the characteristic features of the presence of Exceptional Points, it is the departure from the exponential decay behaviour of the observables as a function of time. We study the time evolution of different initial states, in the presence of the hybrid system, by computing the reduced density matrix of each subsystem. We present the results we have obtained for the steady behaviour of different observables. We analyse the appearance of Squeezed Spin States and anti-Squeezed Spin States.