Quantum Chessboards in the Deuterium Molecular Ion
C. R. Calvert (1), T. Birkeland (1,2), R. B. King (1), I. D. Williams, (1), J. F. McCann (1) ((1) School of Mathematics, Physics, Queen's, University Belfast, UK, (2) University of Bergen, Norway)
TL;DR
This paper introduces a novel vibrational control algorithm for deuterium molecules using ultrafast infrared pulses, enabling selective manipulation of vibrational states with potential experimental realization.
Contribution
A new algorithm for vibrational state control in D2+ molecules using a pump-control pulse sequence with a 'chessboard' pattern of state manipulation.
Findings
Demonstrates feasibility with current technology
Proposes experimental setup with 5 fs pulses at 790 nm
Shows selective enhancement or annihilation of vibrational states
Abstract
We present a new algorithm for vibrational control in deuterium molecules that is feasible with current experimental technology. A pump mechanism is used to create a coherent superposition of the D2+ vibrations. A short, intense infrared control pulse is applied after a chosen delay time to create selective interferences. A `chessboard' pattern of states can be realized in which a set of even- or odd-numbered vibrational states can be selectively annihilated or enhanced. A technique is proposed for experimental realization and observation of this effect using 5 fs pulses of 790 nm radiation, with intermediate intensity (5e13 W/cm2)
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