leja

Juan D. Lejarreta is a professor at the Department of Applied Physics and teaches physics for engineers at the E.T.S.I.I. in the University of Salamanca. He was born in Bilbao (Spain) in 1956 and obtained his Ph.D. in Physics by University of Salamanca in 1996. His interest areas include the analysis and reduction of symmetries in physical systems, and its application in the obtention of the exact and computational solutions of 2D and 2D+1 dimensions problems in condensed matter including nonlinear interactions. He is also investigating in the physical characterization of several graphene nanostructures and its implementation in novel electronic nanodevices of interest.

Email: leja@usal.es

Phone: +34 923 40 80 80 Office: T2244

ResearchID: J. D. Lejarreta

 

PUBLICATIONS
Symmetry computation and reduction of a wave model in 2 + 1 dimensions
P.G Estévez, J. D. Lejarreta, C. Sardón
Nonlinear Dyn (2017) 87:13–23 (2017)''

Angle dependent conductivity in graphene FET transistors
C. H. Fuentevilla, J.D. Lejarreta, C.Cobaleda, E. Diez
Solid-State Electronics 104, 47 (2015) (2015)''

Exact transmission coefficient with one and two barriers in graphene
J.D. Lejarreta, C. Hernández Fuentevilla, E. Diez y J.M. Cerveró
Journal of Physics A: Mathematical and Theoretical 46, 155304 (20pp) (2013)''

Integrable 1+1 dimensional hierarchies arising from reduction of a non-isospectral problem in 2+1 dimensions
P. G. Estévez, J.D. Lejarreta and C. Sardón
Appl. Mathematics. and Computation. 224, 311-324 (2013)''

Iterative symmetry search and reduction of a water wave model in 2 + 1 dimensions
P.G. Estévez , J.D. Lejarreta and C. Sardón
(2013)''

Non-isospectral 1+1 hierarchies arising from a Camassa-Holm Hierarchy in 2+1 dimensions
P. G. Estévez, J.D. Lejarreta and C. Sardón
Journal of Nonlinear Math. Physics, 18, 9-28 (2011)''

Transmission coefficients in monolayer graphene
C. Hernández Fuentevlla and J.D. Lejarreta González
Proceedings of the 10th conference on Computational and Mathematical Methods in Science and Engineering CMMSE2010, (Almería,. España) ,1132-1139, ISBN -978-84-613-5510-5 (2010)''

The symmetry group of the quantum harmonic oscillator in an electric field
Juan D. Lejarreta and José M. Cerveró
Cent Eur. J. Phys, 6, 671-684 (2008)''

Intense laser interacting with a two level atom: WKB expressions for Dipole Transitions and Population Inversion.
J. D. Lejarreta and J. M. Cervero
Physics Letters, 293A, 1-9, (2002) (2002)''

Formalism and Examples of Squeezing and Dynamical Symmetries
J.M. Cerveró and J. D. Lejarreta
Proceedings of the international workshop "Symmetries in Quantum Mechanics and Quantum Optics" , Burgos (Spain) Servicio de Publicaciones de la Universidad de Burgos. 97-108 (1999)''

The Floquet analysis and noninteger higher harmonics generation
José M. Cerveró and J.D. Lejarreta
Journal of Mathematical Physics 40, 1738-1755 (1999)''

The generalized harmonic oscillator and the infinite square well with a moving boundary
J.D. Lejarreta
Journal of Physics A 32, 4749 (1999)''

The time-dependent canonical formalism: Generalized harmonic oscillator and the infinite square well with a moving boundary
José M. Cerveró and J.D. Lejarreta
Europhysics Letters 45, 6-12 (1999)''

Dynamical Symmetries, Cyclic and Periodic States
Jose M. Cerveró and J.D. Lejarreta
Journal of Physics A 31, 5507-5523 (1998)''

Miura Transformation between two Nonlinear Equations in (2+1)-Dimensions
Jose M. Cerveró and P.G. Estévez
Journal of Mathematical Physics 39, 2800-2807 (1998)''

Quantum Phases: Exact Solutions and Two Examples
Jose M. Cerveró and J.D. Lejarreta
Proceedings of the 5th International Conference on Squeezed States and Uncertainty Relations, Balatonfüred, Hungary, 27-31 May, 1997, (D. Han, J. Janszky, Y.S. Kim, and V.I. Man'ko, Eds.), NASA Proceedings, NASA/CP-1998-206855 (1998)''

Quantum Phases and the Degenerate Optical Parametric Oscillator
José M. Cervero and Juan D. Lejarreta,
Quantum and Semiclassical Optics 9, L5-L11 (1997)''

Generalized Two-Mode Harmonic Oscillator: SO(3,2) Dynamical Group and Squeezed States
José M. Cerveró and Juan D. Lejarreta
J. Phys. A: Math & Gen. 29, 7545-7560 (1996)''

Two Photon Interaction: SO(3,2) Symmetry and exact solutions
José M. Cerveró and J. D. Lejarreta
Int. Phys. Conf. Ser. 140, Section 9 201-204 IOP Publishing Ltd. (1995)''