سمینار عمومی فیزیک/30 امرداد
پنجشنبه, ۲۴ مرداد ۱۳۹۲، ۰۶:۲۴ ب.ظ
Dear all,
It is a pleasure for me to announce that IPM speaker this month
is Dr. Mehrdad Mirbabayi from the New York University (NYU). In the following
please find the details of his talk.
Everybody is welcome to
attend.
With kind regards,
Speaker:
Dr Mehrdad Mirbabayi
of
New York University (NYU
Time: 4:30 pm, Wednesday, 30th
of Mordad
August 21st
Location:
Farmanie building, IPM,
Tehran
TITLE:
Stars and Black Holes in Massive Gravity
ستارگان و
سیاهچالهها در گرانشِ جرمدار
Abstract :
I will briefly review Fierz-Pauli massive
gravity -- a large distance modification of general relativity -- and discuss
its star and black hole solutions. In particular the long-standing problem of
the behavior of solutions at zero graviton mass limit will be addressed. I will
argue that while star solutions nicely approach those of general relativity,
black holes are somewhat peculiar. They classically disappear with a
disappearance time inversely proportional to the graviton mass. Therefore, in a
sense, black hole solutions too approach GR solutions as graviton mass goes to
zero.
gravity -- a large distance modification of general relativity -- and discuss
its star and black hole solutions. In particular the long-standing problem of
the behavior of solutions at zero graviton mass limit will be addressed. I will
argue that while star solutions nicely approach those of general relativity,
black holes are somewhat peculiar. They classically disappear with a
disappearance time inversely proportional to the graviton mass. Therefore, in a
sense, black hole solutions too approach GR solutions as graviton mass goes to
zero.
