Many quantum mechanics textbooks now begin with the two-state system, giving a much more detailed treatment than the one given here, including much more about the physical interpretation of such systems (see for example [97]). Volume III of Feynman’s Lectures on Physics [25] is a quantum mechanics text with much of the first half devoted to two-state systems. The field of “Quantum Information Theory” gives a perspective on quantum theory that puts such systems (in this context called the “qubit”) front and center. One possible reference for this material is John Preskill’s notes on quantum computation [69].
来源与版本
正文：英文 · 原著转录
核对状态：AI 辅助转录核对，未作人工审阅
原书 PDF · 印刷页 33
来源版本：2025-10-20
来源 PDF SHA-256：5a1941b2443b54d5db3d055f1e5ba390429b7a728475258017aaac87ee85a837