Quantum Computation and Spin Physics

TL;DR

This paper reviews the physical implementation of quantum computation using spin systems, emphasizing the role of quantum gates, entanglement, and error correction techniques to advance quantum information processing.

Contribution

It provides a concise overview of recent developments in quantum gates, entanglement, and error correction within spin-based quantum computing.

Findings

Quantum gates like controlled-NOT are fundamental for quantum logic.

Entanglement is used to create error-robust quantum states.

A simple protocol for quantum error correction is discussed.

Abstract

A brief review is given of the physical implementation of quantum computation within spin systems or other two-state quantum systems. The importance of the controlled-NOT or quantum XOR gate as the fundamental primitive operation of quantum logic is emphasized. Recent developments in the use of quantum entanglement to built error-robust quantum states, and the simplest protocol for quantum error correction, are discussed.