Vortex contribution to equilibrium currents
Zeev Vager
TL;DR
This paper explores the nature of equilibrium currents in larger quantum systems, revealing that periodic currents necessarily include large aperiodic components affecting magnetic moments.
Contribution
It demonstrates that periodic equilibrium currents in quantum systems inherently involve significant aperiodic contributions to magnetic moments.
Findings
Periodic currents have large aperiodic components.
Aperiodic contributions influence equilibrium magnetic moments.
Equilibrium quantum currents differ fundamentally from classical expectations.
Abstract
Like orbitals in atoms and molecules, persistent currents may appear in larger aggregates. Though classically, equilibrium magnetic moment of non-rotating objects is forbidden, it is known that equilibrium quantum circulating currents are allowed. Such currents were predicted to be periodic with the external magnetic field. It is shown that in general, whenever a periodic component is found, there must be a large aperiodic component forcing aperiodic contribution to the equilibrium magnetic moment as a function of the external field.
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Taxonomy
TopicsScientific Research and Discoveries · Advanced Chemical Physics Studies · Quantum, superfluid, helium dynamics