Deterministic Bell State Discrimination

TL;DR

This paper presents a method using local operations and two ancilla bits to deterministically identify all four Bell states without disturbing the quantum channel.

Contribution

It introduces a novel deterministic Bell state discrimination technique employing local operations and ancilla bits, preserving the quantum channel.

Findings

All four Bell states can be distinguished deterministically.

The method does not affect the quantum channel.

It enhances quantum communication reliability.

Abstract

We make use of local operations with two ancilla bits to deterministically distinguish all the four Bell states, without affecting the quantum channel containing these Bell states.