Time-dependent particle production and particle number in cosmological de Sitter space
نویسندگان
چکیده
منابع مشابه
Particle Production and Classical Condensates in De Sitter Space
The cosmological particle production in a k = 0 expanding de Sitter universe with a Hubble parameter H0 is considered for various values of mass or conformal coupling of a free, scalar field. One finds that, for a minimally coupled field with mass 0 ≤ m2 < 9H2 0/4 (except for m2 = 2H2 0 ), the onemode occupation number grows to unity soon after the physical wavelength of the mode becomes larger...
متن کاملFinite particle creation in 3 + 1 de Sitter space
In this paper we calculate the particle creation as seen by a stationary observer in 3+1 de Sitter space. This particle creation is calculated using an observer dependent geometrically based definition of time which is used to quantize a field on two different spacelike surfaces. The Bogolubov transformation relating these two quantizations is then calculated and the resulting particle creation...
متن کاملParticle Creation in de Sitter Spacetime and Time Quantization
In this paper,we discussed the particle creation in de Sitter spacetime. When discussing the particle creation in a very short span, in used of the temperature of de Sitter space, We found that we must quantize the time.
متن کاملSuper algebra and Harmonic Oscillator in Anti de Sitter space
The harmonic oscillator in anti de Sitter space(AdS) is discussed. We consider the harmonic oscillator potential and then time independent Schrodinger equation in AdS space. Then we apply the supersymmetric Quantum Mechanics approach to solve our differential equation. In this paper we have solved Schrodinger equation for harmonic oscillator in AdS spacetime by supersymmetry approach. The shape...
متن کاملThe Dirac particle on de Sitter background
We show that the Dirac equation on de Sitter background can be analytically solved in a special static frame where the energy eigenspinors can be expressed in terms of usual angular spinors known from special relativity, and a pair of radial wave functions.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics D
سال: 2015
ISSN: 0218-2718,1793-6594
DOI: 10.1142/s0218271815500315