Graviton creation in an expanding universe is studied. Following the work of Parker, we calculate explicit expressions for the Bogoliubov coefficients alpha and beta as functions of time, valid in the high-frequency limit and for an exponentially expanding phase of the universe. The power spectrum of the created gravitons is investigated.
机构:Department of Physics, Sogang University, Seoul
LEE, HW
KIM, Y
论文数: 0引用数: 0
h-index: 0
机构:Department of Physics, Sogang University, Seoul
KIM, Y
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS,
1990,
105
(8-9):
: 867
-
873
机构:Department of Physics, Sogang University, Seoul
LEE, HW
KIM, Y
论文数: 0引用数: 0
h-index: 0
机构:Department of Physics, Sogang University, Seoul
KIM, Y
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS,
1990,
105
(8-9):
: 867
-
873