Quantum phase retrieval of a Rydberg wave packet using a half-cycle pulse

Abstract

A terahertz half-cycle pulse was used to retrieve information stored as quantum phase in an $N$-state Rydberg atom data register. The register was prepared as a wave packet with one state phase-reversed from the others (the "marked bit"). A half-cycle pulse then drove a significant portion of the electron probability into the flipped state via multimode interference.

accepted by PRL

References in corpus (3)

• Quantum Mechanics helps in searching for a needle in a haystack
• Quantum computers can search arbitrarily large databases by a single query
• Semiclassical interferences and catastrophes in the ionization of Rydberg atoms by half-cycle pulses

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• Coherent Control of Resonant Two-Photon Transitions by Counter-Propagating Ultrashort Pulse Pairs
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• Transient localization in the kicked Rydberg atom
• Coherence measurements on Rydberg wave packets kicked by a half-cycle pulse
• Information hiding and retrieval in Rydberg wave packets using half-cycle pulses