The Meissner effect and massive particles as witnesses of macroscopic entanglement

TL;DR

This paper demonstrates that macroscopic entanglement underpins the Meissner effect and flux quantisation in superconductors, and suggests a similar entanglement structure for the Higgs field, highlighting the role of spatial entanglement in fundamental physics.

Contribution

It establishes a link between macroscopic entanglement and key phenomena in superconductivity and particle physics, proposing that the Higgs field shares similar entanglement properties.

Findings

Macroscopic entanglement implies the Meissner effect and flux quantisation.

Analogous entanglement is proposed for the Higgs field.

Internal spin entanglement is shown to be irrelevant in this context.

Abstract

We show how the spatial macroscopic entanglement equivalent to the off diagonal long range order (ODLRO) implies the Meissner effect and flux quantisation for a superconductor. It is argued by analogy with superconductors that the Higgs field must also be entangled in the same way. Internal (spin) entanglement is shown to be irrelevant within this context, although it can of course also be computed.