Add to ORKGThe method of adiabatic invariants for time dependent Hamiltonians is applied to a massive scalar field in a de Sitter space-time. The scalar field ground state, its Fock space and coherent states are constructed and related to the particle states. Diverse quantities of physical interest are illustrated, such as particle creation and the way a classical probability distribution emerges for the system at late times
The possibility of mass in the context of scale-invariant, generally covariant theories, is discusse...
Semi-classical gravity combines classical treatment of the gravitational field with quantum mechanic...
We present a toy model approach to the canonical non-perturbative quantization of the spatially-flat...
We compute the conformal anomalies of boundary CFTs for scalar and fermionic fields propagating in A...
Non-anticommutative field theory is studied in which the spacetime coordinates satisfy a non-anticom...
The smallness of the variation rate of the hamiltonian matrix elements compared to the (square of th...
The Friedmann-Robertson-Walker-Lemaitre metric tensor in matter fields presence in quantum context i...
We consider the problem of determining the noise coefficients of the Hamiltonian associated with a F...
In this report we advance the current repertoire of quantum cosmological models to incorporate inhom...
This contribution is a review of the method of isomonodromic quantization of dimensionally reduced g...
The variant of the quintessence theory is proposed in order to get an accelerated expansion of the F...
A covariant nature of the Langevin equation in Ito calculus is clarified in applying stochastic quan...
In this work we solve Dirac equation by using the method of seperation of variables. Then we analyze...
The possibility of the cosmic string creation by the vacuum fluctuations of quantum fields in the se...
This thesis deals with the dynamics of systems coupled to an environment. We review the symmetries o...
The possibility of mass in the context of scale-invariant, generally covariant theories, is discusse...
Semi-classical gravity combines classical treatment of the gravitational field with quantum mechanic...
We present a toy model approach to the canonical non-perturbative quantization of the spatially-flat...
We compute the conformal anomalies of boundary CFTs for scalar and fermionic fields propagating in A...
Non-anticommutative field theory is studied in which the spacetime coordinates satisfy a non-anticom...
The smallness of the variation rate of the hamiltonian matrix elements compared to the (square of th...
The Friedmann-Robertson-Walker-Lemaitre metric tensor in matter fields presence in quantum context i...
We consider the problem of determining the noise coefficients of the Hamiltonian associated with a F...
In this report we advance the current repertoire of quantum cosmological models to incorporate inhom...
This contribution is a review of the method of isomonodromic quantization of dimensionally reduced g...
The variant of the quintessence theory is proposed in order to get an accelerated expansion of the F...
A covariant nature of the Langevin equation in Ito calculus is clarified in applying stochastic quan...
In this work we solve Dirac equation by using the method of seperation of variables. Then we analyze...
The possibility of the cosmic string creation by the vacuum fluctuations of quantum fields in the se...
This thesis deals with the dynamics of systems coupled to an environment. We review the symmetries o...
The possibility of mass in the context of scale-invariant, generally covariant theories, is discusse...
Semi-classical gravity combines classical treatment of the gravitational field with quantum mechanic...
We present a toy model approach to the canonical non-perturbative quantization of the spatially-flat...