Jaynes-Cummings模型中兩個原子糾纏的演化特性.pdf

1、延邊大學(xué)碩士學(xué)位論文JaynesCummings模型中兩個原子糾纏的演化特性姓名：安成守申請學(xué)位級別：碩士專業(yè)：物理學(xué)理論物理指導(dǎo)教師：張壽20070425AbstractWbhavein、^曙tigatedtheentan酎ementeVolutionofthetwoatoln8innIeinteractionsystemofthetwotw01evelatomsandthetw0modeFbckstatecavityTherestl

2、ltshawsthatwhenthe“roatomsareinthediHbrentstat鉛，thecouplingstrengthoftheatomsandcavityfieldandthestren昏hofthedipoleinteractionarethes砌e，theentan百ementbetweenthetwoatomsincreasewiththeincreasingoftheparticlenlmlberiszero，

3、thetwoatomscannotre如them麟im8lentandementM0reaver，theiroscillationperiodkeepinvariableWhenthetwDatomsareindiff矗entstates，theentan酉em印tbetwe帆theatonlsincreasewiththeincreasingofthedipoleinteraction，andtheiroscmationperiodg

4、etshorterWhenthetwo砒oms8∞intle寄oundstate，andthep盯tic_lenumberoftheca以tyiszero，thetwoatomsdon’tentangleHowever，whentheparticlen訌mberisn’tzer0，thetwoatomscan’treachma菇malentan酉ementundertheinfluenceof此【edipokinteractionMor

5、爭over，theentanglementofthetwoatomsdecreasewiththeincre嬲ingof恤edipoleinteractionandtheparticlenumberofthecavityfleldWhenthetwoatomsareinthee)(itedstate，thet、Ⅳoatomsdon’tentangleKe刪ds：quantumenta】口glement，twomodecavitydipo