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quant-ph2025
Cooling the Sachdev-Ye-Kitaev model using thermofield double states
Thomas Schuster, Bryce Kobrin, Vincent P. Su +2
We analyze a simple and efficient experimental protocol to cool the Sachdev-Ye-Kitaev (SYK) model to low temperatures. The protocol utilizes local couplings between two copies of a…
quant-ph2025
Hardness of recognizing phases of matter
Thomas Schuster, Dominik Kufel, Norman Y. Yao +1
We prove that recognizing the phase of matter of an unknown quantum state is quantum computationally hard. More specifically, we show that the quantum computational time of any pha…