in Quantum Field Theory under the Influence of External Conditions
- D. Dalvit, F. Lombardo, F. Mazzitelli, R. Onofrio, Europhys Lett
- Engineering
- 2004
An improved raisin harvester including a front fork for sliding under a raisin laden tray, a draper web situated above the fork for engaging the trays and sliding them along the fork to a conveyor…
The proximity force approximation for the Casimir energy as a derivative expansion
- C. Fosco, F. Lombardo, F. Mazzitelli
- Mathematics
- 9 September 2011
The proximity force approximation (PFA) has been widely used as a tool to evaluate the Casimir force between smooth objects at small distances. In spite of being intuitively easy to grasp, it is…
Decoherence during Inflation: the generation of classical inhomogeneities
- F. Lombardo, D. L. Nacir
- Physics
- 8 June 2005
We show how the quantum-to-classical transition of the cosmological fluctuations produced during inflation can be described by means of the influence functional and the master equation. We split the…
Environmentally induced effects on a bipartite two-level system: Geometric phase and entanglement properties
- F. Lombardo, P. I. Villar
- Physics
- 15 February 2010
We calculate the geometric phase of a bipartite two-level system coupled to an external environment. We analyze the reduced density matrix for an arbitrary initial state of the composite system and…
Geometric phase with nonunitary evolution in the presence of a quantum critical bath.
- F. Cucchietti, J.‐F. Zhang, F. Lombardo, P. I. Villar, R. Laflamme
- PhysicsPhysical Review Letters
- 8 June 2010
This work measures the nonunitary evolution of the reduced density matrix of a spin one-half coupled to an environment to obtain a correction of the geometric phase with respect to the uncoupled case.
Exact Casimir interaction between eccentric cylinders
- D. Dalvit, F. Lombardo, F. Mazzitelli, R. Onofrio
- Physics
- 1 August 2006
The Casimir force is the ultimate background in ongoing searches for extragravitational forces in the micrometer range. Eccentric cylinders offer favorable experimental conditions for such…
Quantum dissipative effects in moving mirrors: A functional approach
- C. Fosco, F. Lombardo, F. Mazzitelli
- Physics
- 21 May 2007
We use a functional approach to study various aspects of the quantum effective dynamics of moving, planar, dispersive mirrors, coupled to scalar or Dirac fields, in different numbers of dimensions.…
Casimir force for absorbing media in an open quantum system framework: Scalar model
- F. Lombardo, F. Mazzitelli, Adrian Lopez
- Physics
- 29 July 2011
In this article we compute the Casimir force between two finite-width mirrors at finite temperature, working in a simplified model in 1+1 dimensions. The mirrors, considered as dissipative media, are…
Vacuum fluctuations and generalized boundary conditions
- C. Fosco, F. Lombardo, F. Mazzitelli
- Physics
- 25 March 2013
Fil: Fosco, Cesar Daniel. Comision Nacional de Energia Atomica. Gerencia del Area Investicaciones y Aplicaciones No Nucleares; Argentina;
Casimir free energy at high temperatures: Grounded versus isolated conductors
- C. Fosco, F. Lombardo, F. Mazzitelli
- Physics
- 2 May 2016
We evaluate the difference between the Casimir free energies corresponding to either grounded or isolated perfect conductors, at high temperatures. We show that a general and simple expression for…
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