Applications of wavepacket methodology

Abstract

Wavepackets, coherent sums of quantum states, are now well understood both theoretically and experimentally in terms of their creation, evolution and detection. When mature enough, wavepacket methods might themselves be considered a 'technology'. In this paper we address this conjecture and consider the application of wavepacket ideas and techniques to problems such as coherent control, lifetimes of Rydberg states and laser isotope separation. We suggest that wavepacket methods might be thought of more broadly as a potential tool to solve a variety of practical problems.

Time‐Resolved Photoelectron Spectroscopy of Nonadiabatic Dynamics in Polyatomic Molecules

“…There are no 'dark' states in photoionization; (b) Highly detailed, multiplexed information can be obtained by differentially analyzing the outgoing photoelectron as to its kinetic energy and angular distribution; (c) Charged particle detection is extremely sensitive; (d) Detection of the ion provides mass information on the carrier of the spectrum; (e) Higher order (multiphoton) processes, which can be difficult to discern in femtosecond experiments, are readily revealed; (f) Photoelectron-photoion coincidence measurements can allow for studies of cluster solvation effects as a function of cluster size and for time-resolved studies of scalar and vector correlations in photodissociation dynamics. Beginning in 1996, TRPES has been the subject of a number of reviews [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] and these cover various aspects of the field. An exhaustive review of the TRPES literature, including dynamics in both neutrals and anions, was published recently [30].…”

Complete Population Transfer of Maximally Entangled States in $2^{2N}$-level Systems via Pythagorean Triples Coupling

“…Quantum coherent control attracts a great experimental and theoretical interest in current days, especially toward multi-state quantum systems [1][2][3][4][5]. Complete population transfer (CPT) plays an indispensable role in this effort [4,[6][7][8][9][10][11][12], making it is highly desirable to introduce novel efficient methods and models for building such transfer themes. For general time-dependent coupled dynamical equations, it is not easy to find solutions analytically.…”

Communication: Switched wave packets with spectrally truncated chirped pulses

“…To date, the most successful approach for creating controlled wave packets is to use shaped ultrafast laser pulses. [1][2][3] The construction of wave packets composed of states ranging from rotational [4][5][6][7][8] to electronic, [9][10][11] has been demonstrated.…”