Towards detecting traces of non-contact quantum friction in the corrections of the accumulated geometric phase
The geometric phase can be used as a fruitful venue of investigation to infer features of the
quantum systems. Its application can reach new theoretical frontiers and imply innovative …
quantum systems. Its application can reach new theoretical frontiers and imply innovative …
Geometric phase with nonunitary evolution in the presence of a quantum critical bath
Geometric phases, arising from cyclic evolutions in a curved parameter space, appear in a
wealth of physical settings. Recently, and largely motivated by the need of an experimentally …
wealth of physical settings. Recently, and largely motivated by the need of an experimentally …
Geometric phase in a dissipative Jaynes-Cummings model: Theoretical explanation for resonance robustness
We follow a generalized kinematic approach to compute the geometric phases acquired in
both unitary and dissipative Jaynes-Cummings models, which provide a fully quantum …
both unitary and dissipative Jaynes-Cummings models, which provide a fully quantum …
Nonunitary geometric phases: A qubit coupled to an environment with random noise
FC Lombardo, PI Villar - Physical Review A—Atomic, Molecular, and Optical …, 2013 - APS
We describe the decoherence process induced on a two-level quantum system in direct
interaction with a nonequilibrium environment. The nonequilibrium feature is represented by …
interaction with a nonequilibrium environment. The nonequilibrium feature is represented by …
Quantumness and memory of one qubit in a dissipative cavity under classical control
Hybrid quantum–classical systems constitute a promising architecture for useful control
strategies of quantum systems by means of a classical device. Here we provide a …
strategies of quantum systems by means of a classical device. Here we provide a …
Correction to the geometric phase by structured environments: The onset of non-Markovian effects
FC Lombardo, PI Villar - Physical Review A, 2015 - APS
We study the geometric phase of a two-level system under the presence of a structured
environment, particularly analyzing its correction with the ohmicity parameter s and the onset …
environment, particularly analyzing its correction with the ohmicity parameter s and the onset …
Environmentally induced effects on a bipartite two-level system: Geometric phase and entanglement properties
FC Lombardo, PI Villar - Physical Review A—Atomic, Molecular, and Optical …, 2010 - APS
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 …
environment. We analyze the reduced density matrix for an arbitrary initial state of the …
Non-Markovian effect on the geometric phase of a dissipative qubit
We studied the geometric phase of a two-level atom coupled to an environment with
Lorentzian spectral density. The non-Markovian effect on the geometric phase is explored …
Lorentzian spectral density. The non-Markovian effect on the geometric phase is explored …
Detectable signature of quantum friction on a sliding particle in vacuum
Spatially separated bodies in a relative motion through vacuum experience a tiny friction
force known as quantum friction (QF). This force has so far eluded experimental detection …
force known as quantum friction (QF). This force has so far eluded experimental detection …
Corrections to the Berry phase in a solid-state qubit due to low-frequency noise
FC Lombardo, PI Villar - Physical Review A, 2014 - APS
We present a quantum open-system approach to analyze the nonunitary dynamics of a
superconducting qubit when it evolves under the influence of external noise. We consider …
superconducting qubit when it evolves under the influence of external noise. We consider …