Coherence Frame, Entanglement Conservation, and Einselection

TL;DR

This paper develops a theory of coherence frames, classifies them, and demonstrates entanglement conservation during swapping, while critiquing the einselection method for basis selection in entanglement processes.

Contribution

It introduces a new coherence frame theory, classifies coherence frames, and shows entanglement conservation without sudden death or birth during swapping.

Findings

Entanglement is conserved in swapping under coherence frames.

Two types of coherence frames are classified.

Einselection is shown to be incomplete for basis selection.

Abstract

In this paper, the theory of coherence frame is developed. Two kinds of coherence frame are classified. Under coherence frame, the entanglement is conserved in the entanglement swapping process, without entanglement sudden death and birth. The einselection method for the preferred basis problem in the entangle process is shown as incomplete.