Publications

back to main

2013

Initial or final values for semiclassical evolutions in the Weyl-Wigner
representations ***IOP SELECT***
A. M. Ozorio de Almeida, R. O. Vallejos, E. Zambrano
J. Phys. A 46, 135304 (2013)

2012

How do wave packets spread? Time evolution on Ehrenfest time scales ***IOP SELECT***
R. Schubert, F. Toscano e R. O. Vallejos
J. Phys. A 45 (2012) 215307

Generalized Lyapunov exponents of the random harmonic oscillator:
cumulant expansion approach
R. O. Vallejos, C. Anteneodo
Phys. Rev. E 85, 021124 (2012)

2011

Semiclassical approach to fidelity amplitude
I. Garcia Mata, R. O. Vallejos e D. Wisniacki
New J. Phys. 13, 103040 (2011).

2010

Transfer matrices and circuit representation for the semiclassical traces of the baker map
G. G. Carlo, R. F. Abreu, R. O. Vallejos,
Phys. Rev. E 82, 046220 (2010).

Lyapunov exponent of the Kubo oscillator: cumulant approach,
C. Anteneodo, R. O. Vallejos,
J. Phys. Conf. Ser. 246, 012002 (2010).

Phase space structure of generalized Gaussian cat states,
F. Nicacio, R. N. P. Maia, F. Toscano, R. O. Vallejos,
Phys. Lett. A 374, 4385 (2010).

Semiclassical Wigner distribution for a two-mode entangled state generated
by an optical parametric oscillator,
K. Dechoum, M. D. Hahn, R. O. Vallejos, A. Z. Khoury
Phys. Rev. A 81, 043834 (2010).

2009

Semiclassical description of wavepacket revival,
F. Toscano, R. O. Vallejos, D. Wisniacki,
Phys. Rev. E. 80, 046218 (2009).

2008

Fano resonances in the conductance of quantum dots with mixed dynamics,
M. Mendoza, P. A. Schulz, R. O. Vallejos, C. Lewenkopf,
Phys. Rev. B 77, 155307 (2008).

Semiclassical evolution of Gaussian wavepackets,
R. N. P. Maia, F. Nicacio, R. O. Vallejos, F. Toscano,
Phys. Rev. Lett. 100, 184102 (2008).

2007

Statistical bounds on the dynamical generation of entanglement,
R. F. Abreu, R. O. Vallejos,
Phys. Rev. A 75, 062335 (2007).

Quantum baker maps for spiraling chaotic motion,
P. R. del Santoro, R. O. Vallejos, A. M. Ozorio de Almeida,
Braz. J. Phys. 37, 440 (2007).

Periodic orbit bifurcations and scattering time delay fluctuations,
J. P. Keating, A. M. Ozorio de Almeida, S. D. Prado, M. Sieber, R. O. Vallejos,
Suppl. Prog. Th. Phys. 166, 10 (2007).

2006

Entangling power of baker´s map: Role of symmetries,
R. F. Abreu, R. O. Vallejos,
Phys. Rev. A 73, 052327 (2006).

Quantum baker maps with controlled-NOT coupling,
R. O. Vallejos, P. R. del Santoro, A. M. Ozorio de Almeida,
J. Phys. A 39, 5163 (2006).

2005

Pure state correlations: chords in phase space,
A. M. Ozorio de Almeida, R. O. Vallejos, M. Saraceno,
J. Phys. A 38, 1473 (2005).

2004

On the classical-quantum correspondence for the scattering dwell time,
C. H. Lewenkopf, R. O. Vallejos,
Phys. Rev. E 70, 036214 (2004).

Random matrices from nonextensive entropy,
F. Toscano, R. O. Vallejos, C. Tsallis,
Phys. Rev. E 69, 066131 (2004).

Vlasov stability of the Hamiltonian Mean Field model,
C. Anteneodo, R. O. Vallejos,
Physica A 344, 383 (2004).

Largest Lyapunov exponent of long-range XY systems
R. O. Vallejos, C. Anteneodo, 
Physica A 340, 178 (2004).

Open orbits and the semiclassical dwell time,
C. H. Lewenkopf, R. O. Vallejos,
J. Phys. A 37, 131 (2004).

2003

Lyapunov exponent of many-particle systems: 
testing the stochastic approach, 
C. Anteneodo, R. N. P. Maia, R. O. Vallejos, 
Phys. Rev. E 68, 036120 (2003).

2002

Theoretical estimates for the largest Lyapunov exponent of many-particle systems, 
R. O. Vallejos, C. Anteneodo,
Phys. Rev. E 66, 021110 (2002).

Measuring the Lyapunov exponent using quantum mechanics,
F. M. Cucchietti, C. H. Lewenkopf, E. R. Mucciolo, H. M. Pastawski, R. O. Vallejos,
Phys. Rev. E 65, 046209 (2002).

Specific heat oscillations in quasi-periodic structures,
L. R. da Silva, R. O. Vallejos, R. S. Mendes,
Chaos, Solitons & Fractals 13, 539 (2002).

Scaling laws for the largest Lyapunov exponent in long-range systems: A random matrix approach,
C. Anteneodo, R. O. Vallejos,
Phys. Rev. E 65, 016210 (2002).

Orthogonality Catastrophe in Parametric Random Matrices,
R. O. Vallejos, C. H. Lewenkopf, Y. Gefen,
Phys. Rev. B 65, 085309 (2002).

2001

Poincaré section decomposition for quantum scatterers,
A. M. Ozorio de Almeida, R. O. Vallejos,
Physica E 9, 488 (2001).

On the semiclassical theory for universal transmission fluctuations in chaotic systems: the importance of unitarity,
R. O. Vallejos, C. H. Lewenkopf,
J. Phys. A 34, 2713 (2001).

Specific heat of multifractal energy spectra,
L. R. da Silva, R. O. Vallejos, C. Tsallis, R. S. Mendes, S. Roux,
Phys. Rev. E 64, 011104 (2001).

2000

Poincaré's recurrence theorem and the unitarity of the S-matrix,
A. M. Ozorio de Almeida, R. O. Vallejos,
Chaos, Solitons & Fractals 11, 1015 (2000).

1999

The construction of a quantum Markov partition,
R. O. Vallejos, M. Saraceno,
J. Phys. A 32, 7273 (1999).

Decomposition of resonant scatterers by surfaces of section,
R. O. Vallejos, A. M. Ozorio de Almeida,
Ann. Phys. 278, 86 (1999).

Coulomb blockade conductance peak fluctuations in quantum dots
and the independent particle model,
R. O. Vallejos, C. H. Lewenkopf, E. R. Mucciolo,
Phys. Rev. B 60, 13682 (1999).

1998

Quantum time-delay in chaotic scattering: a semiclassical approach,
R. O. Vallejos, A. M. O. de Almeida, C. H. Lewenkopf,
J. Phys. A. 31, 4885 (1998).

Connection between energy-spectrum self-similarity and specific heat log-periodicity,
R. O. Vallejos, R. S. Mendes, L. R. da Silva, C. Tsallis,
Phys. Rev. E. 58, 1346 (1998).

Coulomb blockade peak spacing fluctuations in deformable quantum dots:
a further test to Random Matrix Theory,
R. O. Vallejos, C. H. Lewenkopf, E. Mucciolo,
Phys. Rev. Lett. 81, 677 (1998).

Thermodynamical fingerprints of fractal spectra,
R. O. Vallejos, C. Anteneodo,
Phys. Rev. E. 58, 4134 (1998).

1997 and before

Boundary contributions to the semiclassical traces of the baker's map,
F. Toscano, R. O. Vallejos, M. Saraceno,
Nonlinearity 10, 1 (1997).

Specific heat anomalies associated with Cantor-set energy spectra,
C. Tsallis, L. R. da Silva, R. S. Mendes, R. O. Vallejos, A. M. Mariz,
Phys. Rev. E. 56, R4922 (1997).

The quantum D-transformation,
M. Saraceno, R. O. Vallejos,
CHAOS 6, 193 (1995).

Dispersion relations for surface excitations of symmetric films of ⁴He at T=0K,
L. Szybisz, R. O. Vallejos,
in "Proceedings of the XV International Workshop on Condensed Matter Theories'' (Plenum Press, New York, 1992).

back to main

Last update: 15/10/13