Superposition of flux-qubit states and the law of angular momentum conservation

TL;DR

This paper argues that the common assumptions about superposition in flux qubits violate fundamental physical laws, specifically angular momentum conservation, challenging prevailing quantum models of superconducting loops.

Contribution

It critically examines the assumptions of macroscopic superposition in flux qubits and demonstrates their inconsistency with fundamental conservation laws.

Findings

Superposition assumptions contradict angular momentum conservation

Macroscopic quantum tunneling assumptions are incompatible with quantum formalism

Flux qubit models need revision to align with fundamental physics

Abstract

It is shown that the assumptions on macroscopic quantum tunneling and on superposition of two macroscopically distinct quantum states of superconducting loop, considered as flux qubit by many authors, contradict to the fundamental law of angular momentum conservation and the universally recognized quantum formalism.