Demonstration of a multipulse interferometer for quantum kicked-rotor studies

2008/03/31 by Alexey Tonyushkin, A. Tonyushkin, S. Wu +3
Physics and Astronomy · #Coherence (philosophical gambling strategy) #Cold Atom Physics and Bose-Einstein Condensates #Computational physics #Dephasing #Function (biology) #Interferometry #Momentum (technical analysis) #Optics #Physics #Quantum #Quantum Mechanics and Applications #Quantum chaos and dynamical systems #Quantum mechanics #Recoil #Rotor (electric) #physics.atom-ph

paper · pdf · doi:10.1103/physreva.79.051402

arxiv created 2008/08/04 · openalex publication_date 2009/05/27 · arxiv updated 2014/09/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We implemented a multipulse interferometer scheme that allows us to study a quantum kicked rotor by observing dephasing of momentum coherence. Our study shows that momentum coherence can be nearly perfectly preserved under conditions where the mean energy as a function of the kick number is known to increase without bound. The accompanying width narrowing of these coherences may provide a new method for accurate measurement of the recoil frequency.

Citations

• Quantum resonances and decoherence for -kicked atoms
• Stable Quantum Resonances in Atom Optics
• Experimental verification of a one-parameter scaling law for the quantum and “classical” resonances of the atom-optics kicked rotor
• Classical Scaling Theory of Quantum Resonances
• Quantum Accelerator Modes Near Higher-Order Resonances
• Signatures of Quantum Stability in a Classically Chaotic System
• Kicked-rotor quantum resonances in position space
• Fractional resonances in the atom-opticalδ-kicked accelerator