Romalis Group

Using atomic physics to probe fundamental symmetries.

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

News

• SeungKyun Lee and Mike Romalis recently published their paper on calculation of magnetic field noise from high mu materials in Journal of Applied Physics [Copyright AIP]
• Dima Budker and Mike Romalis recently published their review article on optical magnetometry in Nature Physics. [Copyright Nature]
• Scott Seltzer and colleagues recently published their paper on synchronous optical pumping of quantum revival beats in Physical Review A. [Copyright APS]
• Tom Kornack and colleagues published their paper on a low-noise ferrite magnetic shield. [Copyright AIP]
• Igor Savukov, Scott Seltzer, and Mike Romalis recently published their paper on detecting NMR signals with a radio-frequency atomic magnetometer in Journal of Magnetic Resonance. [Copyright Elsevier]
• Hui Xia and collaborators published their paper on measuring brain magnetic fields with an atomic magnetometer; their work was covered by Physics Today (subscription required) and in Physics News Update.
• Seung-Kyun Lee and collaborators published their paper on detecting nuclear quadrupole resonance with a radio-frequency atomic magnetometer. This was covered by Physics News Update.
• Igor Savukov and colleagues published their discovery of Optical detection of liquid-state NMR in Nature.
• Postdoc, graduate student, and undergraduate positions available. Contact Mike if interested.

Overview

Our experiments are performed by a small group of people and use a variety of experimental techniques and devices, such as optical pumping, NMR, high-T_c SQUID magnetometers, single frequency and high power diode lasers, multi-layer magnetic shields and ultra-low noise electronics. Substantial effort is devoted to detailed understanding and modeling of systematic effects. We are also exploring practical applications of the developed techniques, such as sensitive detection and imaging of the magnetic fields produced by the brain.

Contact Information