基于约瑟夫森结的微波QUBIT
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摘要
约瑟夫森结是一种对磁通高度敏感的电子元器件。约瑟夫森结加上适当的辅助电路可构成许多测量器件。本文对约瑟夫森结的特性和由其构成的微波QUBIT的种类及性质进行了阐述,对于在微波量子探测领域的应用方案进行了初步的设想。
Josephson junction is a highly sensitive electronic component for magnetic flux. The Josephson junction which coupled with appropriate auxiliary circuits can form many kinds of measuring instruments.In this paper,the characteristics of Josephson junction and the types and properties of superconducting QUBITs are narrated. And also,the application scheme in the field of microwave quantum detection is preliminarily conceived.
Josephson junction is a highly sensitive electronic component for magnetic flux. The Josephson junction which coupled with appropriate auxiliary circuits can form many kinds of measuring instruments.In this paper,the characteristics of Josephson junction and the types and properties of superconducting QUBITs are narrated. And also,the application scheme in the field of microwave quantum detection is preliminarily conceived.
引文
[1]Y.Makhlin,G.Schon and A.Shnirman.Quantum-state engineering with Josephson-junction device[J].Rev.Mod.Phys.,2001,73:357.
[2]于扬.约瑟夫森器件中的宏观量子现象及超导量子计算[J].物理,2005,34(8):578.
[3]R.W.Simmonds,K.M.Lang,D.A.Hite,S.Nam,D.P.Pappas,and John M.Martinis.Decoherence in Josephson Phase QUBITs from Junction Resonators[J].Phys.Rev.Lett.,2004,93:077003.
[4]D.Vion,A.Aassime,A.Cottet,P.Joyez,H.Pothier,C.Urbina,D.Esteve,and M.Devoret.Science,2002,296:886.
[5]刘通.固态量子器件的量子态制备及逻辑门实现杭州:杭州师范学院,2015.
[6]Xiao-Ling He,J.Q.You,Yu-xi Liu,L.F.Wei and Franco Nori.Switchable coupling between charge and flux QUBITs[J].Phys.Rev.B,2007,76:024517.
[7]何小灵.超导量子器件与量子信息处理的理论研究[D].上海:复旦大学,2007.
[8]Yuriy Makhlin,Gerd Sch9n,and Al exander Shnirman.Quantum-state engineering with Josephson-junction devices[J].Rev.Mod.Phys.,2001,73:357-400.
[9]J.Q.You and Franco Nori.Quantum information processing with superconducting QUBITs in a microwave field[J].Phys.Rev.B,2003,68:064509.
[10]郑小虎.基于超导量子比特的量子计算研究合肥:安徽大学,2008.
[11]Chui-Ping Yang and Shih-I Chu.Possible realization of entanglement,logical gates,and quantum-information tran sfer with superconducting-quantum-interference-device QUBITs in cavity QED[J].Phys.Rev.A.,2003,67:042311.
[12]A.Wallraff,D.I.Schuster,A.Blais,L.Frunzio,R.-S.Huang,J.Majer,S.基于超导QUBIT的量子计算研究64 Kumar,S.M.Girvin and R.J.Schoelkopf.Strong coupling of a single photon to a superconducting QUBIT using circuit qua ntum electrodynamics[J].Nature,2004,431:162.
[13]J.Q.You and Franco Nori.Superconducti ng Circuits and Quantum Information[J].Physics Today,2005,11:42.
[14]I.Chiorescu et al.,Nature 431,159(2004);M.D.La Haye et al.Science,2004,304:74.
[15]J.Siewert,R.Fazio,G.M.Palma a nd E.Sciacca.Aspects of QUBIT dynamics in the presence of leakage[J].Lo w.Temp.Phys.,2000,118:795.
[16]超导量子干涉器.西北大学出版社,1988.王其俊著;[17]量子雷达.电子工业出版社,2013.[美]Macro Lanzagorta著,周万幸等译;[18]通俗量子信息学.科学出版社,2012.何广平著.
[2]于扬.约瑟夫森器件中的宏观量子现象及超导量子计算[J].物理,2005,34(8):578.
[3]R.W.Simmonds,K.M.Lang,D.A.Hite,S.Nam,D.P.Pappas,and John M.Martinis.Decoherence in Josephson Phase QUBITs from Junction Resonators[J].Phys.Rev.Lett.,2004,93:077003.
[4]D.Vion,A.Aassime,A.Cottet,P.Joyez,H.Pothier,C.Urbina,D.Esteve,and M.Devoret.Science,2002,296:886.
[5]刘通.固态量子器件的量子态制备及逻辑门实现杭州:杭州师范学院,2015.
[6]Xiao-Ling He,J.Q.You,Yu-xi Liu,L.F.Wei and Franco Nori.Switchable coupling between charge and flux QUBITs[J].Phys.Rev.B,2007,76:024517.
[7]何小灵.超导量子器件与量子信息处理的理论研究[D].上海:复旦大学,2007.
[8]Yuriy Makhlin,Gerd Sch9n,and Al exander Shnirman.Quantum-state engineering with Josephson-junction devices[J].Rev.Mod.Phys.,2001,73:357-400.
[9]J.Q.You and Franco Nori.Quantum information processing with superconducting QUBITs in a microwave field[J].Phys.Rev.B,2003,68:064509.
[10]郑小虎.基于超导量子比特的量子计算研究合肥:安徽大学,2008.
[11]Chui-Ping Yang and Shih-I Chu.Possible realization of entanglement,logical gates,and quantum-information tran sfer with superconducting-quantum-interference-device QUBITs in cavity QED[J].Phys.Rev.A.,2003,67:042311.
[12]A.Wallraff,D.I.Schuster,A.Blais,L.Frunzio,R.-S.Huang,J.Majer,S.基于超导QUBIT的量子计算研究64 Kumar,S.M.Girvin and R.J.Schoelkopf.Strong coupling of a single photon to a superconducting QUBIT using circuit qua ntum electrodynamics[J].Nature,2004,431:162.
[13]J.Q.You and Franco Nori.Superconducti ng Circuits and Quantum Information[J].Physics Today,2005,11:42.
[14]I.Chiorescu et al.,Nature 431,159(2004);M.D.La Haye et al.Science,2004,304:74.
[15]J.Siewert,R.Fazio,G.M.Palma a nd E.Sciacca.Aspects of QUBIT dynamics in the presence of leakage[J].Lo w.Temp.Phys.,2000,118:795.
[16]超导量子干涉器.西北大学出版社,1988.王其俊著;[17]量子雷达.电子工业出版社,2013.[美]Macro Lanzagorta著,周万幸等译;[18]通俗量子信息学.科学出版社,2012.何广平著.