Double sudden transitions of geometric discord at finite-temperature in the framework of stochastic description
Wei Wu, Da-Wei Luo, Jing‐Bo Xu · Journal of Applied Physics · 2014
We investigate the phenomenon of double sudden transitions in geometric quantum correlations for a system consisting of a bare qubit and a qubit locally coupled to its finite-temperature heat environment with an Ohmic spectrum in the framework of stochastic description. Moreover, we explore the possibility of protecting the geometric discord between the two qubits and prolonging the time during which the geometric discord remains constant by applying Bang-Bang pulses.