3 papers
quant-ph2019
Quantum counterpart of Measure synchronization: A study on a pair of Harper systems
Saikat Sur, Anupam Ghosh
Measure synchronization is a well-known phenomenon in coupled classical Hamiltonian systems over last two decades. In this paper, synchronization for coupled Harper system is inves…
quant-ph2018
Loschmidt echo of local dynamical processes in integrable and non integrable spin chains
Saikat Sur, V. Subrahmanyam
The Loschmidt echo is investigated to track the effect of the local QDP. It is also quite sensitive to whether the background dynamics is integrable or not. For the integrable case…
quant-ph2018
Interference of the signal from a local dynamical process with the quantum state propagation in spin chains
Saikat Sur, V. Subrahmanyam
The effect of a local instantaneous quantum dynamical process (QDP), either unitary or non-unitary, on the quantum state transfer through a unitary Hamiltonian evolution is investi…