Tian Xia  Associate Scientist

Hefei National Laboratory for physical sciences at the microscale.

443 Huangshan Road

Hefei, Anhui Province 230027

Email: txia1@ustc.edu.cn

Degrees attained

2000-2004, Tsinghua University (Beijing), Bachelor’s degree

2004-2010, Princeton University (NJ, USA), Ph.D

Employment History

August 2015 – present, Associate Scientist, University of Science and Technology of China

November 2010 – July 2015, Research Associate, University of Wisconsin-Madison

Research Interest

  1. Measurement of atomic electric dipole moment (EDM) to probe CP violation and searching for new physics beyond Standard Model.
  2. Precision measurement in general.
  3. Quantum information with neutral atoms.
  4. Spin polarized atoms with optical pumping.

Awards and Honors

Sep 2004 ~ Jun 2008, Gordon Wu Fellow

Feb 2008 ~ June 2010 PPST Fellow(Plasma Physics Science &Technology, funded by Department of Energy)

Selected Publications

  1. T. Xia et al. Phys. Rev. A 81, 033419 (2010)


  2. B. H. McGuyer et al. Phys. Rev. A 84, 030501(2011)

    DOI: http://dx.doi.org/10.1103/PhysRevA.84.030501

  3. T. Xia et al. Phys. Rev. A 88, 062337(2013)


  4. T. Xia et al. Phys.Rev.Lett. 114, 100503 (2015)


  5. K. M. Maller et al. Phys. Rev. A 92, 022336 (2015)

    DOI: http://dx.doi.org/10.1103/PhysRevA.92.022336

Key words

Precision measurement, atomic EDM measurement, quantum information, spin polarized atoms


Violations of symmetries in fundamental interactions are important in understanding the universe,for example, the imbalance of matter and antimatter. These violations will cause non-zero atomic EDM, which is usually difficult to detect. We will use some specific isotopes as candidates to perform atomic EDM measurements. These isotopes have bigger stronger nuclear distortion, so they have better sensitivity of new physics beyond standard model. The technical challenge is suppression of the statistical error in the measurement.