A sign-free quantum Monte Carlo study shows hard-core bosons coupled to entropy-absorbing bond bosons can stay condensed at infinite temperature in 3D, while 2D bond fluctuations destroy superfluidity.
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Infinite-temperature quantum phases and phase transitions
A sign-free quantum Monte Carlo study shows hard-core bosons coupled to entropy-absorbing bond bosons can stay condensed at infinite temperature in 3D, while 2D bond fluctuations destroy superfluidity.