Efficient and robust chiral resolution by composite pulses

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  • Boyan T. Torosov, Bulgarian Academy of Sciences
  • ,
  • Michael Drewsen
  • Nikolay V. Vitanov, St. Kliment Ohridski University of Sofia

We introduce a method for the detection of chiral molecules using sequences of three pulses driving a closed-loop three-state quantum system. The left- and right-handed enantiomers have identical optical properties (transition frequencies and transition dipole moments) with the only difference being the sign of one of the couplings. We identify 12 different sequences of resonant pulses for which chiral resolution with perfect contrast occurs. In all of them, the first and third pulses are pi/2 pulses and the middle pulse is a pi pulse. In addition, one of the three pulses must have a phase shift of pi/2 with respect to the other two. The simplicity of the proposed chiral resolution technique allows for straightforward extensions to more efficient and more robust implementations by replacing the single pi/2 and pi pulses by composite pulses. We present specific examples of chiral resolution by composite pulses which compensate errors in the pulse areas and the detuning of the driving fields.

Original languageEnglish
Article number063401
JournalPhysical Review A
Volume101
Issue6
Number of pages7
ISSN1050-2947
DOIs
Publication statusPublished - 2020

    Research areas

  • 2-STEP ENANTIOMERIC PURIFICATION, NMR POPULATION-INVERSION, LASER-PULSES, BROAD-BAND, SELECTIVE PREPARATION, MODEL SIMULATION, RACEMIC MIXTURES, PARITY VIOLATION, QUANTUM CONTROL, ITERATIVE MAPS

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