کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8193615 | 1528882 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Remarks on the instability of black Dp-branes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
We show that for black Dp-branes having charge Q and Hawking temperature T, the product QT7âp is bounded from above for p⩽5 and is unbounded for p=6. While the maximum occurs at some finite value of a parameter for p⩽4, it occurs at infinity of the parameter for p=5. As a consequence, for fixed charge, there are two black Dp-branes (for p⩽4) at any given temperature less than its maximum value, and when the temperature is maximum there is one black Dp-brane. For p=5, there is only one black D5-brane at a given temperature less than its maximum value, whereas, for p=6, since there is no bound for the temperature, there is always a black D6-brane solution at a given temperature. Of the two black Dp-branes (for p⩽4), one is large which is shown to be thermodynamically unstable and the other is small which is stable. But for p=5,6, the black Dp-branes are always thermodynamically unstable. The stable, small black Dp-brane, however, under certain conditions, can become unstable quantum mechanically and decay either to a BPS Dp-brane or to a Kaluza-Klein “bubble of nothing” through closed string tachyon condensation. The small D5, D6 branes, although classically unstable, have the same fate under similar conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 686, Issues 4â5, 29 March 2010, Pages 254-258
Journal: Physics Letters B - Volume 686, Issues 4â5, 29 March 2010, Pages 254-258
نویسندگان
J.X. Lu, Shibaji Roy,