Romalis Group

Using atomic physics to probe fundamental symmetries.

CP Violation	CPT Violation	Medical applications
Sensitive magnetometry	Optical NMR detections	Quantum Measurements
About our work Presentations Publications Articles	We are here	We are supported by Princeton University, Packard Foundation, NASA, NSF, DARPA, NIH, DOE, NIST,

News

• Dong Sheng, Shuguang Li, Nezih Dural, and Mike Romalis have published a paper on Subfemtotesla Scalar Atomic Magnetometry Using Multipass Cells. in Physical Review Letters [Copyright ACS].
• Junhui Shi, Suvi Ikäläinen, Juha Vaara, and Mike Romalis have published a paper on Observation of Optical Chemical Shift by Precision Nuclear Spin Optical Rotation Measurements and Calculations. in The Journal of Physical Chemistry Letters [Copyright APS].
• Micah Ledbetter, Giacomo Saielli, Alessandro Bagno, Nhan Tran, and Mike Romalis have published a paper on Observation of scalar nuclear spin–spin coupling in van der Waals complexes. in Proceedings of the National Academy of Sciences of the United States of America [Copyright PNAS].
• G. Vasilakis. "Precision Measurements of Spin Interactions with High Density Atomic Vapors. " Dissertation, Princeton University (2011).
• J. M. Brown. "A New Limit on Lorentz- and CPT-Violating Neutron Spin Interactions Using a K-³He Comagnetometer. " Dissertation, Princeton University (2011).
• Shuguang Li, P. Vachaspati, Dong Sheng, Nezih Dural, and Mike Romalis have published a paper on Optical rotation in excess of 100 rad generated by Rb vapor in a multipass cell. in Physical Review A [Copyright APS].
• M. Smiciklas, Justin Brown, L. Cheuk, S. Smullin and Mike Romalis have published a paper on New Test of Local Lorentz Invariance Using a ²¹Ne-Rb-K Comagnetometer in Physical Review Letters[Copyright APS].
• Giorgos Vasilakis, Vishal Shah, and Mike Romalis have published a paper on Stroboscopic Backaction Evasion in a Dense Alkali-Metal Vapor in Physical Review Letters [Copyright APS].
• Mike Romalis has published a paper on Hybrid Optical Pumping of Optically Dense Alkali-Metal Vapor without Quenching Gas in Physical Review Letters [Copyright APS].
• Amit Ben-Kish and Mike Romalis have published a paper on Dead-Zone-Free Atomic Magnetometry with Simultaneous Excitation of Orientation and Alignment Resonances in Physical Review Letters [Copyright APS].
• Suvi Ikäläinen , Mike Romalis, Perttu Lantto and Juha Vaara have published a paper on Chemical Distinction by Nuclear Spin Optical Rotation in Physical Review Letters [Copyright APS].
• Hoan Dang, Adam Maloof and Michael Romalis have published a paper on ultrahigh sensitivity magnetic field and magnetization measurements with an atomic magnetometer in Applied Physics Letters [Copyright AIP].
• Justin Brown, Sylvia Smullin, Tom Kornack and Michael Romalis have published a paper on the new limit on Lorentz- and CPT- violating neutron spin interactions in Physical Review Letters [Copyright APS].
• Vishal Shah, Giorgos Vasilakis and Mike Romalis recently published their paper on a measurement of spin-projection noise in high bandwidth magnetometry in Physical Review Letters [Copyright APS].
• Giorgos Vasilakis, Justin Brown, Tom Kornack and Mike Romalis recently published their paper on a new limit on long range spin-dependant forces between nuclear spins in Physical Review Letters [Copyright APS]. (Editors Choice)
• Scott Seltzer and Mike Romalis published their paper on high temperature alkali vapor cells with antirelaxation surface coatings in the Journal of Applied Physics [Copyright AIP].
• Sylvia Smullin, Igor Savukov, Giorgos Vasilakis, Rajat Ghosh and Mike Romalis published their paper on a low-noise, high-density, alkali-metal, scalar magnetometer in Physical Review A [Copyright APS].
• Vishal Shah and Mike Romalis published their paper on a spin-exchange relaxation-free magnetometer using elliptically polarized light in Physical Review A [Copyright APS].
• SeungKyun Lee and Mike Romalis published their paper on a calculation of magnetic field noise from high mu materials in Journal of Applied Physics [Copyright AIP]
• Dima Budker and Mike Romalis published their review article on optical magnetometry in Nature Physics. [Copyright Nature]
• Postdoc, graduate student, and undergraduate positions available. Contact Mike if interested.