A radio-frequency Bose–Einstein condensate magnetometer

Tunable atomic magnetometer for detection of radio-frequency magnetic fields.

We describe an alkali-metal magnetometer for detection of weak magnetic fields in the radio-frequency (rf) range. High sensitivity is achieved by tuning the Zeeman resonance of alkali atoms to the rf frequency and partially suppressing spin-exchange collisions in the alkali-metal vapor. We demonstrate magnetic field sensitivity of 2 fT/Hz(1/2) at a frequency of 99 kHz with a resonance width of ...

Quantum-enhanced magnetometer with low-frequency squeezing

Travis Horrom,1 Robinjeet Singh,2 Jonathan P. Dowling,2,3 and Eugeniy E. Mikhailov1 1Department of Physics, The College of William and Mary, Williamsburg, Virginia 23187, USA 2Hearne Institute of Theoretical Physics and Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA 3Beijing Computational Science Research Center, Beijing, 100084, China (Receiv...

I-DWRL: Improved Dual Wireless Radio Localization Using Magnetometer

In the dual wireless radio localization (DWRL) technique each sensor node is equipped with two ultra-wide band (UWB) radios; the distance between the two radios is a few tens of centimeters. For localization, the DWRL technique must use at least two pre-localized nodes to fully localize an unlocalized node. Moreover, in the DWRL technique it is also not possible for two sensor nodes to properly...

The Viability of Oil Extraction from Trinidad Tar Sands by Radio Frequency Heating: A Simulation Approach

Trinidad has tar sand resources of about 2 billion barrels of oil on land in the Parrylands/Guapo and Brighton areas. With an oil price of over USD 25 per barrel, the commercial extraction of oil from Trinidad tar sands is viable, but it requires a careful study. The relatively small extent of this tar sand (about 10,000 acres and with depths varying from surface to less than 500 feet) and with...

Radio Frequency Interference Mitigation in Radio Astronomy