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Born-Infeld-AdS黑洞的熱力學(xué)與相變的研究

發(fā)布時(shí)間:2024-01-23 13:03
  黑洞作為宇宙中被證實(shí)存在的最極端天體,對(duì)于黑洞的研究一直是引力理論研究的重點(diǎn),特別是其熱力學(xué)性質(zhì)。近年來,隨著對(duì)引力波及黑洞陰影的成功直接觀測,對(duì)于將黑洞熱力學(xué)與黑洞相變和黑洞的可觀測引力效應(yīng)聯(lián)系起來成為了新的熱門研究方向。光子軌道與帶電AdS黑洞相變之間的關(guān)系已被研究,本文主要將研究擴(kuò)展到了Born-Infeld-AdS黑洞,探究不同維度下,Born-Infeld-AdS黑洞存在的有趣相變類型—重入相變—是否可以通過光子軌道來揭示,從而可以給更多豐富類型的相變與光子軌道關(guān)系的研究以及黑洞視界望遠(yuǎn)鏡的觀測提供方向。我們首先根據(jù)前人的研究討論了Born-Infeld-AdS黑洞的度規(guī)并且計(jì)算出了黑洞的基本熱力學(xué)參量和狀態(tài)方程。隨后根據(jù)不同的Born-Infeld參數(shù)b導(dǎo)致的熱力學(xué)臨界點(diǎn)個(gè)數(shù)的差異,我們可以將黑洞分為四種類型,類型I不存在相變,類型II和III存在一個(gè)重入相變,但是類型III的兩個(gè)臨界點(diǎn)之一具有負(fù)壓強(qiáng),類型IV只存在類范德瓦爾斯相變。對(duì)于這些不同的情形,我們畫出相應(yīng)的壓強(qiáng)-溫度和溫度-比體積的相圖。然后,我們通過光子徑向運(yùn)動(dòng)的有效勢來計(jì)算半徑rps和最...

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【學(xué)位級(jí)別】:碩士

圖2.1:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=0.3<b0。(a)等溫曲線的溫度從下到上為T=0.02,0.03,0.04,0.043和0.06。(b)等壓曲線的壓強(qiáng)從下到上為P=0.001,0.002,0.003,0.004,0.005和0.006。虛線是不同等溫或等壓曲線中的極值點(diǎn)。

圖2.1:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=0.3

圖2.2:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=0.4∈(b0,b1)。(a)等溫曲線的溫度從下到上為T=0.02,0.03,0.040492(Tc0),0.043,0.045890(Tc1)和0.06。(b)等壓曲線的壓強(qiáng)從下到上為P=0.001,0.002016(Pc0),0.003,0.003807(Pc1),0.0045和0.006。和圖2.1不同,對(duì)于某些壓強(qiáng)和溫度,等溫曲線和等壓曲...

圖2.2:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=0.4∈(b0,b1)。(a)等溫曲線的溫度從下到上為T=0.02,0.03,0.040492(Tc0),0.043,0.045890(Tc1)和0.06。(b)等壓曲線的壓強(qiáng)從下到上為P=0.001,0.002016(Pc0),0.003,0.003807(Pc1),0.0045和0.006。和圖2.1不同,對(duì)于某些壓強(qiáng)和溫度,等溫曲線和等壓曲...


圖2.3:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=0.45∈(b1,b2)。(a)等溫曲線的溫度從下到上為T=0.01,0.026885(Tc0),0.03,0.045170(Tc1),0.05和0.06。(b)等壓曲線的壓強(qiáng)從下到上為P=-0.003253(Pc0),0.001,0.002,0.003,0.003664(Pc1)和0.006。圖中有兩個(gè)臨界點(diǎn),第二個(gè)臨界點(diǎn)的溫度為正值,但是壓強(qiáng)為負(fù)值...

圖2.3:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=0.45∈(b1,b2)。(a)等溫曲線的溫度從下到上為T=0.01,0.026885(Tc0),0.03,0.045170(Tc1),0.05和0.06。(b)等壓曲線的壓強(qiáng)從下到上為P=-0.003253(Pc0),0.001,0.002,0.003,0.003664(Pc1)和0.006。圖中有兩個(gè)臨界點(diǎn),第二個(gè)臨界點(diǎn)的溫度為正值,但是壓強(qiáng)為負(fù)值...


圖2.4:IV:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=1>b2。(a)等溫曲線的溫度從下到上為P=0.01,0.02,0.03,0.043620(Tc1),0.05和0.06。(b)等壓曲線的壓強(qiáng)從下到上為T=0.001,0.002,0.003372(Pc1),0.004和0.006。在這種類型下,只存在一個(gè)臨界點(diǎn),并且只存在范德瓦爾斯類型的相變。

圖2.4:IV:BI-AdS黑洞的等溫曲線和等壓曲線,圖中b=1>b2。(a)等溫曲線的溫度從下到上為P=0.01,0.02,0.03,0.043620(Tc1),0.05和0.06。(b)等壓曲線的壓強(qiáng)從下到上為T=0.001,0.002,0.003372(Pc1),0.004和0.006。在這種類型下,只存在一個(gè)臨界點(diǎn),并且只存在范德瓦爾斯類型的相變。



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