Probing Quantum Thermalization of a Disordered Dipolar Spin Ensemble with Discrete Time-Crystalline Order

We investigate thermalization dynamics of a driven dipolar many-body quantum system through the stability of discrete time crystalline order. Using periodic driving of electronic spin impurities in diamond, we realize different types of interactions between spins and demonstrate experimentally that...

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Bibliographic Details
Published in:Physical review letters 2019-02, Vol.122 (4), p.043603-043603, Article 043603
Main Authors: Choi, Joonhee, Zhou, Hengyun, Choi, Soonwon, Landig, Renate, Ho, Wen Wei, Isoya, Junichi, Jelezko, Fedor, Onoda, Shinobu, Sumiya, Hitoshi, Abanin, Dmitry A, Lukin, Mikhail D
Format: Article
Language:English
Subjects:
Crystal structure
Crystallinity
Diamonds
Dynamic stability
Electron spin
Ising model
Quantum theory
Thermalization (energy absorption)
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Summary:We investigate thermalization dynamics of a driven dipolar many-body quantum system through the stability of discrete time crystalline order. Using periodic driving of electronic spin impurities in diamond, we realize different types of interactions between spins and demonstrate experimentally that the interplay of disorder, driving, and interactions leads to several qualitatively distinct regimes of thermalization. For short driving periods, the observed dynamics are well described by an effective Hamiltonian which sensitively depends on interaction details. For long driving periods, the system becomes susceptible to energy exchange with the driving field and eventually enters a universal thermalizing regime, where the dynamics can be described by interaction-induced dephasing of individual spins. Our analysis reveals important differences between thermalization of long-range Ising and other dipolar spin models.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.122.043603