Inducing changes in the bond length of diatomic molecules by time-symmetric chirped pulses

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.063414· OSTI ID:21528914

Chang, Bo Y; Shin, Seokmin; Sola, Ignacio R ^[1]

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1. School of Chemistry (BK21), Seoul National University, Seoul 151-747 (Korea, Republic of)

We show numerically that it is possible to change the structure of a simple molecule, that is, a diatomic molecule, where the bond length is modified at a precise timing with symmetrically chirped laser pulses. In the adiabatic regime, the process is fully time reversible, making it possible to design slow vibrations with large bond elongations. The scheme relies on the preparation of a separable state of both nuclear and electronic degrees of freedom with predominant amplitude on the dissociative (antibonding) electronic wave function. Shorter laser pulses can be used to dynamically induce larger bond elongations, preparing a highly excited vibrational wave packet in the ground potential as the laser is switched off.

• OSTI ID: 21528914
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063414; (c) 2010 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
BOND LENGTHS
DEGREES OF FREEDOM
ELECTRONS
ELONGATION
LASERS
MOLECULES
PULSES
SYMMETRY
VIBRATIONAL STATES
WAVE FUNCTIONS
WAVE PACKETS
DEFORMATION
DIMENSIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
EXCITED STATES
FERMIONS
FUNCTIONS
LENGTH
LEPTONS