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Êǵġ£gold quantum point contacts (QPCS)£º½ð²ÄÁÏ×ö³ÉµÄÁ¿×Óµã½Ó´¥¡£ ¸ÅÄ Quantum Point Contact (QPC) is a narrow constriction between two wide electrically-conducting regions, of a width comparable to the electronic wave length (nano- to micrometer). Quantum point contacts were first reported in 1988 by a Dutch group (Van Wees et al.) and, independently, by a British group (Wharam et al.). Çë²ÎÔÄElectronic Transport in Mesoscopic Systems, S. Datta, Cambridge University Press, 1995, Paperback Edition 1997. [ Last edited by quantumfang on 2007-8-14 at 08:48 ] |
2Â¥2007-08-14 08:45:26
soaringhawk
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3Â¥2007-08-14 23:03:04
quantumfang
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4Â¥2007-08-15 08:51:58
quantumfang
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5Â¥2007-08-15 09:01:08
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6Â¥2007-08-15 12:56:39
quantumfang
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½ðÁ¿×Óµã½Ó´¥²»ÊÇÁ¿×ӵ㡣µã½Ó´¥ÊÇÒ»¸ö¸ÅÄî¡£Á¿×ÓµãÊÇÒ»¸öÆ÷¼þ£¬µã½Ó´¥ÊÇÆä×é³É²¿·ÖÖ®Ò»¡£Á¿×Óµã½Ó´¥£¨QPC£©¿ÉÒÔ¿´³ÉÊÇÁ¿×ÓµãµÄÃż÷£¬½«µç×ÓÏÞÖÆÔÚÁ¿×ÓµãÄÚ²¿¡£ µ±È»£¬µã½Ó´¥×÷ÓñȽ϶࣬ͨ³£×÷Ϊ·Ç³£ÁéÃôµÄµçºÉ¼ì²âÆ÷£¬±ÈÈç˵µ¥µç×Ó¼ì²â¡¢¶Á³öqubitµÄ״̬¡£ ²Î¿¼£ºH. van Houten and C.W.J. Beenakker (1996). "Quantum point contacts". Physics Today 49 (7): 22¨C27. [ Last edited by quantumfang on 2007-8-15 at 13:18 ] |
7Â¥2007-08-15 13:14:24
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8Â¥2007-08-15 19:28:55
quantumfang
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9Â¥2007-08-16 07:58:56
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10Â¥2007-08-16 10:33:54














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