Video URL

https://pirsa.org/14060030

Search for new physics in atoms: cosmic PNC and variation of alpha

Dzuba, V. (2014). Search for new physics in atoms: cosmic PNC and variation of alpha. Perimeter Institute for Theoretical Physics. https://pirsa.org/14060030

Dzuba, Vladimir. Search for new physics in atoms: cosmic PNC and variation of alpha. Perimeter Institute for Theoretical Physics, Jun. 18, 2014, https://pirsa.org/14060030 

          @misc{ scivideos_PIRSA:14060030,
            doi = {10.48660/14060030},
            url = {https://pirsa.org/14060030},
            author = {Dzuba, Vladimir},
            keywords = {},
            language = {en},
            title = {Search for new physics in atoms: cosmic PNC and variation of alpha},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2014},
            month = {jun},
            note = {PIRSA:14060030 see, \url{https://scivideos.org/pirsa/14060030}}
          }

Vladimir Dzuba University of New South Wales (UNSW)

DOI 10.48660/14060030
Source Repository PIRSA
Collection
Talk Type Conference

Abstract

We consider pseudo-scalar and pseudo-vector interaction of atomic electrons with hypothetical dark matter particles (e.g., axions). These interactions lead to oscillating atomic parity non-conserving (PNC) amplitudes and/or oscillating electric dipole moments (EDM). In static
limit for PNC, existing atomic PNC experiments can be used to constrain time component of the pseudo-vector field.

Possible variation of fundamental constants is suggested by theories unifying gravity with other interactions. Evidence of the space/time variation of the fine structure constant alpha is found in
the quasar absorption spectra. Optical transitions in highly charged ions can be used as sensitive tools for studying time variation of alpha in laboratory.