نتایج جستجو برای: btz
تعداد نتایج: 813 فیلتر نتایج به سال:
نظریه میدان های همدیس به عنوان زیرمجموعه ای از نظریه میدان های کوانتومی، دارای تقارن همدیس است. میدان های همدیس در دو بعد، نمایش های جبر ویراسورو هستند که مولدهای آن، مدهای تانسور انرژی تکانه نظریه می باشند. با استفاده از تقارن های همدیس می توان شکل توابع دونقطه ای و سه نقطه ای را به صورت کامل تعیین نمود. در ادامه، حل های سیاه چاله سه بعدی btz را بررسی کرده ایم. این سیاه چاله ها از حل معادله ای...
Multiple myeloma (MM) is a clonal plasma cell malignancy which is frequently diagnosed in patients over 65 years of age. Because of an aging population, the incidence of MM has increased nearly 1 percent annually since 1975 and it is anticipated that the number of cases will nearly double by 2034 [1]. The introduction of novel agents such as the proteasome inhibitor bortezomib (BTZ) has signifi...
The Penrose process of an extremal Ban\~ados-Teitelboim-Zanelli (BTZ) black hole is studied. Due to the existence negative cosmological constant, only massless particles could escape infinity. Hence we analyze by one particle collides with another massive particle. Calculations maximum energy extraction efficiency this carried out for both spinless and spinning particles. Our results show that ...
We present a derivation of the Bekenstein-Hawking entropy from conformal field theories. In particular we consider a six-dimensional string configuration with background metric AdS3 × S3 near the horizon. In addition we introduce momentum modes along the string, corresponding to a BanadosTeitelboim-Zanelli (BTZ) black hole in the anti-de Sitter (AdS) space-time, and a Taub-NUT soliton in the tr...
—Sites where Barrow’s Goldeneye (Bucephala islandica) undergo remigial molt and fall staging are poorly known, with only two major sites documented in Alaska and the Yukon Territory. Satellite telemetry, aerial surveys and ground surveys were used to identify previously unknown molting and fall staging areas in the Boreal Transition Zone (BTZ) of northern Alberta. Of 816 wetlands surveyed betwe...
In this paper, general uncharged accelerating BTZ black hole solutions are extracted and studied some of their properties. The analysis shows that spacetime's asymptotic behavior depends on four parameters: the cosmological constant, mass, acceleration, topological constant. Then, temperature these holes it is found always positive for AdS spacetime. Next, study extended extracting charged in p...
We derive an exact expression for the partition function of the Euclidean BTZ black hole. Using this, we show that for a black hole with large horizon area, the correction to the Bekenstein-Hawking entropy is −3/2 log(area), in agreement with that for the Schwarzschild black hole obtained in the four dimensional canonical gravity formalism and also in a Lorentzian computation of BTZ black hole ...
We obtain the BTZ black hole (AdS 3 ×S 3) as a non-dilatonic solution from type 0B string theory. Analyzing the perturbation around this black hole background, we show that the tachyon is not a propagating mode.
We obtain the BTZ black hole (AdS 3 ×S 3) as a non-dilatonic solution from type 0B string theory. Analyzing the s-wave perturbation around this black hole background, we show that the tachyon is not a propagating mode.
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