Attractor states and quantum instabilities in de Sitter space

Conference · Mon Jan 01 04:00:00 EST 2001

OSTI ID:975124

Anderson, P R ^[1]; Eaker, W ^[2]; Habib, S ^[3]; Molina-Paris, Carmen; Mottola, E ^[4]

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1. Paul R.
2. Wayne
3. Salman
4. Emil

The asymptotic behavior of the energy-momentum tensor for a free quantized scalar field with mass m and curvature coupling {zeta} in de Sitter space is investigated. It is shown that for an arbitrary, homogeneous and isotropic, fourth order adiabatic state for which the two-point function is infrared finite, <T{sub ab}> approaches the Bunch-Davies de Sitter invariant value at late times if m{sup 2} + {zeta}R > 0. In the case m = {zeta} = 0, the energy-momentum tensor approaches the de Sitter invariant Allen-Folacci value for such a state. For m{sup 2} + {zeta}R = 0, but m and {zeta} not separately zero it is shown that at late times <T{sub ab}> grows linearly in terms of cosmic time leading to an instability of de Sitter space. The asymptotic behavior is again independent of the state of the field. For m{sup 2} + {zeta}R < 0, it is shown that, for most values of m and {zeta}, <T{sub ab}> grows exponentially in terms of cosmic time at late times in a state dependent manner.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 975124
• Report Number(s): LA-UR-01-0513; LA-UR-01-513
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ATTRACTORS
BOUNDARY CONDITIONS
DE SITTER GROUP
ENERGY-MOMENTUM TENSOR
INSTABILITY
SCALAR FIELDS