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Further Evidence for Cosmological Evolution of the Fine Structure Constant
J. K. Webb, M. T. Murphy, V. V. Flambaum +5
We describe the results of a search for time variability of the fine structure constant, alpha, using absorption systems in the spectra of distant quasars. Three large optical data…
Possible evidence for a variable fine structure constant from QSO absorption lines: systematic errors
M. T. Murphy, J. K. Webb, V. V. Flambaum +2
Comparison of quasar absorption spectra with laboratory spectra allow us to probe possible variations in the fundamental constants over cosmological time-scales. In a companion pap…
Possible evidence for a variable fine structure constant from QSO absorption lines: motivations, analysis and results
M. T. Murphy, J. K. Webb, V. V. Flambaum +5
An experimental search for variation in the fundamental coupling constants is strongly motivated by modern high-energy physics theories. Comparison of quasar absorption line spectr…