Frequency Shifts Don't Imply Quantum Entanglement: The Tardigrade Case
2025-01-01
A recent, unpublished manuscript claims to demonstrate quantum entanglement between a superconducting qubit and a tardigrade, sparking much media attention. However, the authors cite a frequency shift in the qubit as evidence, a claim challenged by physicists. This post uses a simple mass-spring system analogy to illustrate the commonplace nature of frequency shifts. Even in quantum systems, frequency is primarily determined by mass and springiness, not entanglement. The author argues the experiment lacks sufficient evidence for quantum entanglement, attributing the observed frequency shift to classical physics.
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