Phys. Rev. Lett. 90, 223001 (2003) [4 pages]Switched Wave Packets: A Route to Nonperturbative Quantum ControlReceived 19 February 2003; published 4 June 2003 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. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.223001
DOI:
10.1103/PhysRevLett.90.223001
PACS:
32.80.Qk, 42.50.Hz
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