Switched Wave Packets: a route to Nonperturbative Quantum Control

Underwood, Jonathan G.; Spanner, Michael; Ivanov, Misha Yu; Mottershead, Jeff; Sussman, Benjamin and Stolow, Albert (2003). Switched Wave Packets: a route to Nonperturbative Quantum Control. Physical Review Letters, 90(22) p. 223001.

DOI: https://doi.org/10.1103/PhysRevLett.90.223001

URL: http://link.aps.org/abstract/PRL/v90/e223001

Abstract

The dynamic Stark effect due to a strong nonresonant but nonionizing laser field provides a route to quantum control via the creation of novel superposition states. We consider the creation of a field-free "switched" wave packet through adiabatic turn-on and sudden turn-off of a strong dynamic Stark interaction. There are two limiting cases for such wave packets. The first is a Raman-type coupling, illustrated by the creation of field-free molecular axis alignment. An experimental demonstration is given. The second case is that of dipole-type coupling, illustrated by the creation of charge localization in an array of quantum wells.

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