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Extending Noether's theorem by quantifying the asymmetry of quantum states

Iman Marvian1, Robert W Spekkens2

  • 11] Perimeter Institute for Theoretical Physics, 31 Caroline St. N, Waterloo, Ontario, Canada N2L 2Y5 [2] Institute for Quantum Computing, University of Waterloo, 200 University Ave. W, Waterloo, Ontario, Canada N2L 3G1 [3] Center for Quantum Information Science and Technology, Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089, USA.

Nature Communications
|May 14, 2014
PubMed
Summary

This study introduces new measures of symmetry breaking in quantum states, extending Noether's theorem. These measures reveal novel constraints on system dynamics and have applications in quantum information science.

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