北京大学量子力学期末试题 - 百度文库 ر

ݷʱ : 2024/12/26 21:11:26һ µȫĶ

ѧľʽ

1гвڶеıʾ

1һάгӻ̬??x,t??1?a3na?12?a2x2i???t22e

2ԭӻ̬??r,t??eri?E2ta0?

2һάλ壨0xaӵͶеľԪ

?xľʾ 3ڶнǶL4ڣl2?xĿֵӦʡ ,lzУl?1ĿռеLp25H??V(r)ôķ֤͹

2???En?Em?xnmn2?2 ?2?ʾ

?H,X?,??H,X?,X?ȻԪm??H,X?,X?m?

26ABCA1֤AB?BA?B2?C2?I,BC?CB?2iA

?AC?CA?0

2AУBCʾ

p2x?V(x),ֱдxPxx,pxHľʾ 7H?2??200???8ʸ?1,?2?3չ̬ռУijѧA?a?001?

?010??? 12

̬??

111?1??2??3вAĿֵʺƽֵ

222

13

1?Ϊ֤ei??z?cos??i?zsin?

12????x?i?y,֤?2??0

2???3?zУ??nı̬n?sin?con?,sin?sin?,cos??(?,?)??ĵλʸ

????????????4֤ʽ??A??B?A?B?i??A?BA,B?ס

????????5֪ԭ

1222(2s)0(2p)2cĵΪ(1s)0jԸ

1򲢶ȣ

2jjϵ̬ʽ 3LSϵ̬ʽ

e?e?l?SӴl2,j2,jzı̬6ӵĴž???2?0?0ljmj?Уž?

????ljmj?zljmj?mj?j

1??S?ıֵͱ̬ھнСıϵSxy2??ļǶ 2?zֵӦ̬Уs18Ϊϵt?0ʱڱֵΪ?/2Sxı̬

2B??0.0.B?ĴųУtʱ̣Sxȡ?/2ļʡ

9ijΪ1/2ϵž???0?,t?0ʱھȴųB0УB0 14

ָZt?0ʱټһתųB1(t)䷽Zᴹֱ ??1?B1sin2?0te?2 B1(t)?B2cos2?0te?0??0B0/?c

?0ʱϵsz??/2ı̬?1/2t?0ʱϵ

֪tԼҪʱ䡣

10ȫͬӣԴ

?1,?2,?3̬ϣ

n1?3;n1?n2?n3?1;n1?2,n2?1µĶԳƻ򷴶ԳƲ

д

11ȫͬϵһάУӼ໥ã

ϵܼͲ

V(x,y)?0??????0?x?L,0?y?Lx?L,y?L,x?0y?0

12ȫͬӣһάгУ˴˼仹໥ȵλΪ

V(x1,x2)?1122k(x1?x3)?a(x1?x2)2,22a,k?0

ϵֵĽԳԷֱ֮

15