Requirements for probing chiral Casimir-Polder forces in a molecular Talbot-Lau interferometer

Fumika Suzuki (Corresponding author), S. A. Shah, Diego A.R. Dalvit, Markus Arndt (Corresponding author)

Publications: Contribution to journalArticlePeer Reviewed


We theoretically investigate the influence of chiral Casimir-Polder (CP) forces in Talbot-Lau interferometry, based on three nanomechanical gratings. We study scenarios where the second grating is either directly written into a chiral material or where the nanomask is coated with chiral substances. We show requirements for probing enantiospecific effects in matter-wave interferometry in the transmission signal and the interference fringe visibility, which depend on the de Broglie wavelength and the molecular chirality. The proposed setup is particularly sensitive to CP forces in the nonretarded regime where chiral effects can be comparable in magnitude to their electric and magnetic counterparts. While the first and third gratings do not change the phase of the matter wave, applying a coating of chiral substances to them enhances the instrument's chiral selectivity.
Original languageEnglish
Article number023145
Number of pages10
JournalPhysical Review Research
Issue number2
Publication statusPublished - May 2024

Austrian Fields of Science 2012

  • 103026 Quantum optics
  • 103006 Chemical physics

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