Quantum Measurement: Theory and Practice

This book adopts a novel, physics-first approach to quantum measurement, using physical experiments as the basis to describe the underlying mathematical formalism. Topics covered include weak measurements, quantum measurement reversal, quantum trajectories and the stochastic path integral formalism. The theory of quantum measurement is also covered in detail, including discussion of how it can be tested and demonstrated in a laboratory: how to build quantum-limited amplifiers, fundamental noise limits imposed on measurement by quantum mechanics, and the design of superconducting circuits. This text is an excellent introduction for students with a basic understanding of quantum mechanics wanting to learn more about measurement theory, and the inclusion of a wide selection of end-of-chapter exercises make this book ideal for emerging courses on the topic. Key chapters introducing the foundations of quantum computing and the history of measurement theory are equally accessible to a broader, less specialised audience.

這本書採用了一種新穎的物理學先行方法來介紹量子測量，以物理實驗作為描述其基礎數學形式的基礎。涵蓋的主題包括弱測量、量子測量逆轉、量子軌跡和隨機路徑積分形式。量子測量理論也有詳細的介紹，包括如何在實驗室中進行測試和驗證：如何建造量子極限放大器、量子力學對測量所施加的基本噪音限制，以及超導電路的設計。這本教材對於具有基本量子力學理解並希望深入了解測量理論的學生來說是一個很好的入門書，並且每章末尾的廣泛練習題使得這本書非常適合新興課程的使用。介紹量子計算的關鍵章節和測量理論的歷史同樣適合更廣泛、不那麼專業的讀者。