Quantum Spontaneous Magnetization in Single-Junction Superconducting π-Rings
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Abstract
Based upon the calculations of energy levels and quantum states, we discuss the probability of quantum spontaneous magnetization flux as a function of the screen parameter β for the superconducting ring containing one Josephson π-junction, and compare the result with that in the classical case. Our results indicate that there is significant difference in the magnetization behaviour around β=1 between the quantum and classical situations. -
References
[1] Hilgenkamp H, Ariando, Smilde H H, Blank D H A, RijndersG, Rogalla H, Kirtley J R and Tsuei C C 2003 Nature 42250 [2] Walker M B and Luettmer-Strathmann J 1996 Phys. Rev.B 54 588 [3] Bulaevskii L N, Kuzii V V and Sobyanin A A 1977 JETPLett. 25 290 [4] Geshkenbein V B and Larkin A I 1986 JETP Lett. 43 395 [5] Sigrist M and Rice T M 1992 J. Phys. Soc. Jpn. 61 4283 [6] Tian Ye, Wang H W, Kong X Y, Zhao S P, Chen G H and Yang QS 2004 Supercond. Sci. Technol. 17 838 [7] Kong X Y, Tian Ye, Wang H W, Zhao S P, Chen G H and Yang QS 2004 Supercond. Sci. Technol. 17 791 [8] Kong X Y, Tian Ye, Wang H W, Zhao S P, Chen G H and Yang QS 2004 Supercond. Sci. Technol. 17 1088 [9] Diggins J, Clark T D, Prance H, Prance R J, Spiller T P,Ralph J and Brouers F 1995 Physica B 215 367 [10] Friedman J R, Patel V, Chen W, Tolpygo S K and Lukens J E2000 Nature 406 43 [11] Tian Ye 2006 PhD thesis (Beijing: Institute of Physics,Chinese Academy of Sciences) (in Chinese) [12] Ballentine L E 2002 Quantum Mechanics: A ModernDevelopment (Singapore: World Scientific) -
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