activity
19982017
most citedSpace-Time Variation of Physical Constants and Relativistic Corrections in Atoms

308 citations · 1.2k across the 17 of their papers we have counts for

collaborators

18 papers

physics.atom-ph2017★ 39 cited

Isotope shift and search for metastable superheavy elements in astrophysical data

V. A. Dzuba, V. V. Flambaum, J. K. Webb

Spectral lines belonging to the short-lifetime heavy radioactive elements up to Es (=99) have been found in the spectra of the Przybylski's star. We suggest that these unstable…

astro-ph.CO2013★ 80 cited

Limits on the dependence of the fine-structure constant on gravitational potential from white-dwarf spectra

J. C. Berengut, V. V. Flambaum, A. Ong +5

We propose a new probe of the dependence of the fine structure constant, alpha, on a strong gravitational field using metal lines in the spectra of white dwarf stars. Comparison of…

astro-ph.CO2010★ 51 cited

Is there further evidence for spatial variation of fundamental constants?

J. C. Berengut, V. V. Flambaum, J. A. King +2

The detection of a spatial variation of the fine-structure constant, alpha, based on study of quasar absorption systems has recently been reported. The physics that causes this alp…

astro-ph2007★ 92 cited

Comment on "Limits on the Time Variation of the Electromagnetic Fine-Structure Constant in the Low Energy Limit from Absorption Lines in the Spectra of Distant Quasars"

Michael T. Murphy, John K. Webb, Victor V. Flambaum

In their Letter [Phys. Rev. Lett. 92, 121302 (2004)] (also [Astron. Astrophys. 417, 853 (2004)]), Srianand et al. analysed optical spectra of heavy-element species in 23 absorption…

physics.atom-ph2004★ 7 cited

Laboratory spectroscopy and the search for space-time variation of the fine structure constant using QSO spectra

J. C. Berengut, V. A. Dzuba, V. V. Flambaum +4

Theories unifying gravity with other interactions suggest spatial and temporal variation of fundamental ``constants'' in the Universe. A change in the fine structure constant, alph…

astro-ph2003★ 13 cited

Constraining Variations in the Fine-structure Constant, Quark Masses and the Strong Interaction

M. T. Murphy, V. V. Flambaum, J. K. Webb +3

We present evidence for variations in the fine-structure constant from Keck/HIRES spectra of 143 quasar absorption systems over the redshift range 0.2 < z_abs < 4.2. This includes…