Many-body Green's function approach to attosecond nonlinear x-ray spectroscopy

Journal Article · Mon Jun 15 00:00:00 EDT 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.79.235129· OSTI ID:21294177

Harbola, Upendra ^[1]; Mukamel, Shaul ^[2]

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1. Department of Chemistry and Biochemistry, University of California, San Diego, California 92093-0340 (United States)
2. Department of Chemistry, University of California, Irvine, California 92697-2025 (United States)

Closed expressions are derived for resonant multidimensional x-ray spectroscopy using the quasiparticle nonlinear exciton representation of optical response. This formalism is applied to predict coherent four wave mixing signals which probe single and two-core-hole states. Nonlinear x-ray signals are compactly expressed in terms of one- and two-particle Green's functions which can be obtained from the solution of Hedin-type equations at the GW level.

• OSTI ID: 21294177
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 79, Issue 23; Other Information: DOI: 10.1103/PhysRevB.79.235129; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
EQUATIONS
FREQUENCY MIXING
GREEN FUNCTION
MANY-BODY PROBLEM
MATHEMATICAL SOLUTIONS
NONLINEAR PROBLEMS
QUASI PARTICLES
VELOCITY
X RADIATION
X-RAY SPECTROSCOPY