【摘要】：在2009年,M.Banǎdos,J.Silk和S.M.West(BSW)證明了,在滿足了一定條件的情況下,無宇宙學(xué)常數(shù)的背景時(shí)空中的Kerr黑洞可以作為粒子加速器,使得在其外視界面上發(fā)生碰撞的粒子的碰撞質(zhì)心能發(fā)散。而所要滿足的條件為：1)所考慮的平直時(shí)空中的Kerr黑洞為極端黑洞,2)其中一個(gè)碰撞粒子帶有臨界角動(dòng)量。我們的工作就是將這個(gè)研究推廣到宇宙學(xué)常數(shù)不為零的非平直時(shí)空中的Kerr黑洞,即討論Kerr-anti-de Sitter黑洞或Kerr-de Sitter黑洞作為粒子加速器的可能性。我們發(fā)現(xiàn),此時(shí)不為零的宇宙學(xué)常數(shù)在這個(gè)問題的研究中起到了重要作用：對(duì)于Kerr-anti-de Sitter黑洞,如果要使在其外視界面上發(fā)生的粒子碰撞的碰撞質(zhì)心能發(fā)散,則除了滿足上面兩個(gè)條件外,黑洞和帶有臨界角動(dòng)量的碰撞粒子還需要滿足一定的附加條件；而對(duì)于Kerr-de Sitter黑洞,則只需要滿足上述第二個(gè)條件,則在黑洞外視界面上發(fā)生的粒子碰撞的碰撞質(zhì)心能就會(huì)發(fā)散。因此非極端的Kerr-de Sitter黑洞仍然可以充當(dāng)粒子加速器,從而使得在其外視界面上發(fā)生的粒子碰撞的碰撞質(zhì)心能達(dá)到正無窮。所以Kerr-(anti-)de Sitter黑洞也許可以作為粒子加速器用來探測(cè)普朗克能標(biāo)或更高能標(biāo)的物理。
[Abstract]:In 2009, M.Ban dos,J.Silk and S.M.West (BSW) proved that Kerr black holes in background spacetime without cosmological constants can be used as particle accelerators under certain conditions. The collision centroid of a particle colliding at its external interface can be divergent. The conditions to be satisfied are as follows: 1) the considered Kerr black hole in flat spacetime is an extreme black hole, 2) one of the colliding particles has critical angular momentum. Our work is to extend this study to Kerr black holes in nonplanar spacetimes with nonzero cosmological constants, that is, to discuss the possibility of Kerr-anti-de Sitter black holes or Kerr-de Sitter black holes as particle accelerators. We find that the cosmological constant, which is not zero at this time, plays an important role in the study of this problem: for a Kerr-anti-de Sitter black hole, if the collision centroid of a particle colliding at its external interface is to diverge, In addition to the above two conditions, black holes and colliding particles with critical angular momentum also need to satisfy certain additional conditions. For a Kerr-de Sitter black hole, only the second condition mentioned above is satisfied, and the collisional centroid energy of particles colliding at the outer viewing interface of the black hole will be divergent. Therefore, the non-extreme Kerr-de Sitter black hole can still act as a particle accelerator, so that the collision centroid of particles colliding at its external interface can reach a positive infinity. So Kerr- (anti-) de Sitter black hole) may be used as a particle accelerator to probe the physics of Planck energy scales or higher energies.
【學(xué)位授予單位】：蘭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：P145.8

【共引文獻(xiàn)】

相關(guān)博士學(xué)位論文 前2條

1 魏少文;W弦場(chǎng)論實(shí)現(xiàn)的新進(jìn)展和黑洞背景下的強(qiáng)引力效應(yīng)[D];蘭州大學(xué);2012年

2 劉長青;彎曲時(shí)空中粒子碰撞與加速、強(qiáng)引力透鏡效應(yīng)以及黑洞能量提取[D];湖南師范大學(xué);2013年

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本文編號(hào)：2338585