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Teaching Assistant
Department of Theoretical Physics
Universidad Autónoma de Madrid
October 1980-August 1984
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Fulbright Fellow
Department of Physics
Brandeis University
September 1984-August 1985
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Fulbright Fellow
and Research Associate
Institute for Theoretical Physics
Stony Brook University
September 1985-June 1986
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Postdoctoral Researcher
Department of Theoretical Physics
Universidad Autónoma de Madrid
October 1986-December 1987
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Associate Professor
Department of Theoretical Physics
Universidad de Valencia
January 1988-January 1989
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Tenured Scientist
Instituto de Estructura de la Materia
Consejo Superior de Investigaciones Científicas
February 1989-October 2004
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Senior Researcher
Instituto de Estructura de la Materia
Consejo Superior de Investigaciones Científicas
November 2004-April 2009
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Research Professor
Instituto de Estructura de la Materia
Consejo Superior de Investigaciones Científicas
May 2009-present
