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Multiple-frequency tests of anomalous rotation in bulk solid helium

Eyal, Mi, Talanov and Reppy measured bulk solid helium with double- and triple-mode torsional oscillators, separating a dominant frequency-dependent period shift from a smaller extrapolated frequency-independent contribution in some samples. They considered the latter a possible supersolid signature and proposed further discriminating tests.

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What is recorded here?

Eyal, Mi, Talanov and Reppy measured bulk solid helium with double- and triple-mode torsional oscillators, separating a dominant frequency-dependent period shift from a smaller extrapolated frequency-independent contribution in some samples. They considered the latter a possible supersolid signature and proposed further discriminating tests.

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Scientific scope

The frequency-independent intercept is derived by extrapolation and relies on the oscillator model, background subtraction, shear-modulus and sample assumptions. It is not a direct observation of superflow or conclusive proof of a supersolid phase; the authors state that additional tests are required. Their results concern bulk helium samples, distinct from the 2012 confined-Vycor null result.

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People and systems

A. Eyal; X. Mi; A. V. Talanov; J. D. Reppy

These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.

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English catalogue narrative

Multiple-frequency tests of anomalous rotation in bulk solid helium

Eyal, Mi, Talanov and Reppy measured bulk solid helium with double- and triple-mode torsional oscillators, separating a dominant frequency-dependent period shift from a smaller extrapolated frequency-independent contribution in some samples. They considered the latter a possible supersolid signature and proposed further discriminating tests.

Scientific scope

The frequency-independent intercept is derived by extrapolation and relies on the oscillator model, background subtraction, shear-modulus and sample assumptions. It is not a direct observation of superflow or conclusive proof of a supersolid phase; the authors state that additional tests are required. Their results concern bulk helium samples, distinct from the 2012 confined-Vycor null result.

Reading status

This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.

People and systems

A. Eyal; X. Mi; A. V. Talanov; J. D. Reppy

These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.

Original sources