{"author_url":"https://blog.hatena.ne.jp/enakai00/","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/e/enakai00/20220927/20220927091327.png","height":"190","blog_url":"https://enakai00.hatenablog.com/","title":"Quantum Information and Quantum Optics with Superconducting Circuits - Exercise Solutions (Chapter 4)","author_name":"enakai00","version":"1.0","url":"https://enakai00.hatenablog.com/entry/2022/09/27/163605","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","description":"4.1 For the thermal state : For the pure state : 4.2 By mathematical induction, you can prove: Hence: 4.4 Current conservation: Branch currents: Hence: Without the register: With the register: 4.5 4.6 This is very rough apporximation. I'm not sure if this is really an intended answer. 4.7 In the tex\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fenakai00.hatenablog.com%2Fentry%2F2022%2F09%2F27%2F163605\" title=\"Quantum Information and Quantum Optics with Superconducting Circuits - Exercise Solutions (Chapter 4) - \u3081\u3082\u3081\u3082\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","width":"100%","blog_title":"\u3081\u3082\u3081\u3082","published":"2022-09-27 16:36:05","categories":[]}