26 citations · 57 across the 5 of their papers we have counts for
6 papers
Exact Work Characteristic Functions for Time-Dependent Bosonic Quadratic Hamiltonians
F. Nicacio, R. N. P. Maia
We derive an exact analytical expression for the characteristic function of work in closed many-body bosonic systems governed by general time-dependent quadratic Hamiltonians. This…
Gauge Quantum Thermodynamics of Time-local non-Markovian Evolutions
Fernando Nicacio, Raphael N. P. Maia
Dealing with a generic time-local non-Markovian master equation, we define current and power to be process-dependent as in classical thermodynamics. Each process is characterized b…
Computing LDOS resonance energy shifts of monatomic doped chains
R. N. P. Maia, C. M. Silva da Conceição
An analytical method to compute the LDOS energy spectrum and stationary states for finite size doped monatomic chains modelled by an effective one-dimensional tight-binding hamilto…
Phase Space Structure of Generalized Gaussian Cat States
Fernando Nicacio, Raphael N. P. Maia, Fabricio Toscano +1
We analyze generalized Gaussian cat states obtained by superposing arbitrary Gaussian states, e.g., a coherent state and a squeezed state. The Wigner functions of such states exhib…
WKB Propagation of Gaussian Wavepackets
Raphael N. P. Maia, Fernando Nicacio, Raul O. Vallejos +1
We analyze the semiclassical evolution of Gaussian wavepackets in chaotic systems. We prove that after some short time a Gaussian wavepacket becomes a primitive WKB state. From the…
Lyapunov exponent of many-particle systems: testing the stochastic approach
Celia Anteneodo, Raphael N. P. Maia, Raul O. Vallejos
The stochastic approach to the determination of the largest Lyapunov exponent of a many-particle system is tested in the so-called mean-field XY-Hamiltonians. In weakly chaotic reg…