Comment on "Quantum Time Crystals": a new paradigm or just another proposal of perpetuum mobile?
Patrick Bruno
TL;DR
This paper critically examines the concept of quantum time crystals, questioning whether they represent a genuine new physical phenomenon or are merely theoretical constructs akin to perpetual motion machines.
Contribution
It provides a critical analysis of Wilczek's proposal, clarifying misconceptions and discussing the feasibility of quantum time crystals as a physical reality.
Findings
Quantum time crystals may not be physically realizable.
The concept challenges traditional understanding of equilibrium states.
Further experimental evidence is needed to confirm their existence.
Abstract
A Comment on Frank Wilczek's paper "Quantum Time Crystals" (Phys. Rev. Lett. 109, 160401 (2012); arXiv:1202.2539).
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