Cooling classical many-spin systems using feedback control

نویسندگان

چکیده

We propose a technique for polarizing and cooling finite many-body classical systems using feedback control. The requires the system to have one collective degree of freedom conserved by internal dynamics. fluctuations other degrees are then converted into growth one. proposal is validated numerical simulations spin in setting representative Nuclear Magnetic Resonance experiments. In particular, we were able achieve 90 percent polarization lattice 1000 spins starting from an unpolarized infinite temperature state.

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ژورنال

عنوان ژورنال: Physical review

سال: 2022

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevb.105.104305