广州大学学报：自然科学版
廣州大學學報：自然科學版
엄주대학학보：자연과학판
Journal og Guangzhou University:Natural Science Edition
2012年
2期
23-26
,共4页
黑洞%极端黑洞%量子隧穿%霍金辐射%相变
黑洞%極耑黑洞%量子隧穿%霍金輻射%相變
흑동%겁단흑동%양자수천%곽금복사%상변
black hole%extreme black hole%quantum tunneling%Hawking radiation%phase transition
文章重新讨论了Reissner-Nordstrm黑洞带电粒子辐射谱.发现与黑洞带同种电荷的粒子辐射率大于异种带电粒子或不带电粒子的辐射率.其结果是Reissner-Nordstrm黑洞的荷质比将变得越来越小.此外,还计算了Reissner-Nordstrm黑洞荷质比的最大值,发现这一最大值远小于极端黑洞的荷质比.因此,通过量子隧穿将非极端黑洞变为极端黑洞的相变是不可能发生的.
文章重新討論瞭Reissner-Nordstrm黑洞帶電粒子輻射譜.髮現與黑洞帶同種電荷的粒子輻射率大于異種帶電粒子或不帶電粒子的輻射率.其結果是Reissner-Nordstrm黑洞的荷質比將變得越來越小.此外,還計算瞭Reissner-Nordstrm黑洞荷質比的最大值,髮現這一最大值遠小于極耑黑洞的荷質比.因此,通過量子隧穿將非極耑黑洞變為極耑黑洞的相變是不可能髮生的.
문장중신토론료Reissner-Nordstrm흑동대전입자복사보.발현여흑동대동충전하적입자복사솔대우이충대전입자혹불대전입자적복사솔.기결과시Reissner-Nordstrm흑동적하질비장변득월래월소.차외,환계산료Reissner-Nordstrm흑동하질비적최대치,발현저일최대치원소우겁단흑동적하질비.인차,통과양자수천장비겁단흑동변위겁단흑동적상변시불가능발생적.
In this paper,we re-discuss the emission spectrum of charged particles from the Reissner-Nordstrm black holes.We find that the emission rate of a particle with charge of the same sign as that of the black hole is greater than those of opposite charge or uncharged particle with the same mass.As a result,the charge to mass ratio of the Reissner-Nordstrm black hole will become smaller and smaller.Moreover,we also calculate the maximum of the charge to mass ratio of a Reissner-Nordstrm black hole,and we find that the maximal charge to mass ratio is much less than that of an extreme charged black hole.The phase transitions of the black holes via tunneling from a non-extreme Reissner-Nordstrm black hole to an extreme charged black hole are not possible.
