Ancilla assisted Discrete Time Crystals in Non-interacting Spin Systems
- URL: http://arxiv.org/abs/2107.11748v1
- Date: Sun, 25 Jul 2021 07:41:24 GMT
- Title: Ancilla assisted Discrete Time Crystals in Non-interacting Spin Systems
- Authors: Jianpei Geng, Vadim Vorobyov, Durga Dasari and Joerg Wrachtrup
- Abstract summary: We show the emergence of discrete time translation symmetry breaking in non-interacting systems.
These time-periodic structures become stable against perturbations only in the presence of their interaction with the ancillary quantum system.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We show here through experiments and exact analytical models the emergence of
discrete time translation symmetry breaking in non-interacting systems. These
time-periodic structures become stable against perturbations only in the
presence of their interaction with the ancillary quantum system and display
subharmonic response over a range of rotation angle errors. We demonstrate this
effect for central spin and spin-mechanical systems, where the ancillary
induced interaction among the spins stabilizes the spin dynamics against finite
errors. Further, we extend these studies and show the possibility to even
achieve non-local (remote) synchronization of such Floquet crystals.
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