AI Article Synopsis
- The study examines how a driven dipolar many-body quantum system undergoes thermalization by looking into the stability of discrete time crystalline order.
- Through experiments with electronic spin impurities in diamond, different types of spin interactions are showcased, highlighting the impact of disorder and periodic driving on thermalization dynamics.
- Key findings indicate that for short driving periods, the system follows a specific effective Hamiltonian, while long driving periods lead to energy exchange and a universal thermalizing regime characterized by interaction-induced dephasing of spins, with notable differences in thermalization between long-range Ising and other dipolar spin models.
Article Abstract
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.
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| http://dx.doi.org/10.1103/PhysRevLett.122.043603 | DOI Listing |
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