https://doi.org/10.1140/epjd/s10053-022-00485-5
Regular Article – Quantum Information
Periodic quenching modulated quantum phase transitions in transverse XY spin-chains
School of Physics, Dalian University of Technology, 116024, Dalian, China
Received:
18
May
2022
Accepted:
15
August
2022
Published online:
23
August
2022
The XY spin-chain in transverse fields under the modulation of periodic quenching has been investigated in this paper. We have obtained the exact expression of the Floquet effective Hamiltonian and analyzed the phase diagram, the corresponding critical properties, as well as geometric phase of the system. Our results show that the critical properties and phase diagram of the spin-chain can be modulated by the periodic quenching. We also considered the central spin system’s Loschmidt echo coupling to such spin-chain and showed that the Loschmidt echo can be used to detect the new critical points of the effective system.
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