Ultrafast Molecular Frame Quantum Tomography

• URL: http://arxiv.org/abs/2303.03558v1
• Date: Mon, 6 Mar 2023 23:55:21 GMT
• Title: Ultrafast Molecular Frame Quantum Tomography
• Authors: Luna Morrigan, Simon P. Neville, Margaret Gregory, Andrey E. Boguslavskiy, Ruaridh Forbes, Iain Wilkinson, Rune Lausten, Albert Stolow, Michael S. Schuurman, Paul Hockett, Varun Makhija
• Abstract summary: methodology for a full molecular frame quantum tomography (MFQT) of dynamical polyatomic systems is developed. MFQT provides new routes to the study of ultrafast molecular dynamics, information processing, metrology and optimal control schemes.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A methodology for a full molecular frame quantum tomography (MFQT) of dynamical polyatomic systems is developed, and applied to fully characterize a non-adiabatc electronic wavepacket in ammonia molecules (NH$_3$). The method exploits both energy and time-domain spectroscopic data, and yields the lab frame density matrix (LFDM) for the system, the elements of which are populations and coherences fully characterising the electronic and vibrational dynamics in the molecular frame. Beyond characterizing the system, time and orientation angle dependent expectation values of any relevant operator may be constructed using the LFDM. For example, the time-dependent molecular frame electronic probability density may be constructed, yielding information on charge flow in the molecular frame, and entanglement within the system can be determined. In general MFQT provides new routes to the study of ultrafast molecular dynamics, information processing, metrology and optimal control schemes.

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