用慢速驱动激活临界指数谱
Activating critical exponent spectra with a slow drive
摘要：
我们揭示了一个方面的Kibble-Zurek现象，根据该光谱的临界指数的经典或量子相变的揭示，通过驱动系统慢慢地在平行于相边界的方向。这一结果是在重整化群制定的Kibble-Zurek的情况下，并根据之间的连接打破绝热性和退出的临界域通过新的相关方向诱导的缓慢驱动器。该机制不需要微调，在这个意义上说，缩放源自无关的运营商是可观察到的驱动参数的广泛制度。因此，它应该在量子模拟器或动态可调凝聚态平台中可观察到。
英文摘要：
We uncover an aspect of the Kibble--Zurek phenomenology, according to which the spectrum of critical exponents of a classical or quantum phase transition is revealed, by driving the system slowly in directions parallel to the phase boundary. This result is obtained in a renormalization group formulation of the Kibble--Zurek scenario, and based on a connection between the breaking of adiabaticity and the exiting of the critical domain via new relevant directions induced by the slow drive. The mechanism does not require fine tuning, in the sense that scaling originating from irrelevant operators is observable in an extensive regime of drive parameters. Therefore, it should be observable in quantum simulators or dynamically tunable condensed-matter platforms.
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