Research Repository

See what's under the surface


Dispersive detection of radio-frequency-dressed states (2018)
Journal Article
Jammi, S., Pyragius, T., Bason, M. G., Marin Florez, H., & Fernholz, T. (2018). Dispersive detection of radio-frequency-dressed states. Physical Review A, 97(4), doi:10.1103/PhysRevA.97.043416

We introduce a method to dispersively detect alkali atoms in radio-frequency dressed states. In particular, we use dressed detection to measure populations and population differences of atoms prepared in their clock states. Linear birefringence of th... Read More

Matter-wave interferometers using TAAP rings (2016)
Journal Article
Navez, P., Pandey, S., Mas, H., Poulios, K., Fernholz, T., & von Klitzing, W. (in press). Matter-wave interferometers using TAAP rings. New Journal of Physics, 18, doi:10.1088/1367-2630/18/7/075014. ISSN 1367-2630

We present two novel matter-wave Sagnac interferometers based on ring-shaped time-averaged adiabatic potentials (TAAP). For both the atoms are put into a superposition of two different spin states and manipulated independently using elliptically pola... Read More

The UK National Quantum Technology Hub in Sensors and Metrology (2016)
Book
Bongs, K., Boyer, V., Cruise, M., Freise, A., Holynski, M., Hughes, J., …John, P. (2016). The UK National Quantum Technology Hub in Sensors and Metrology. In J. Stuhler, & A. J. Shields (Eds.), Quantum opticsSPIE. doi:10.1117/12.2232143

The UK National Quantum Technology Hub in Sensors and Metrology is one of four flagship initiatives in the UK National of Quantum Technology Program. As part of a 20-year vision it translates laboratory demonstrations to deployable practical devices,... Read More

Towards rotation sensing with a single atomic clock (2016)
Journal Article
Fernholz, T., Stevenson, R., Hush, M. R., Lesanovsky, I., Bishop, T., Gentile, F., …von Klitzing, W. (2016). Towards rotation sensing with a single atomic clock. Proceedings of SPIE, 9900(990007), doi:10.1117/12.2229878. ISSN 0277-786X

We discuss a scheme to implement a gyroscopic atom sensor with magnetically trapped ultra-cold atoms. Unlike standard light or matter wave Sagnac interferometers no free wave propagation is used. Interferometer operation is controlled only with stati... Read More

Sagnac interferometry with a single atomic clock (2015)
Journal Article
Stevenson, R., Hush, M. R., Bishop, T., Lesanovsky, I., & Fernholz, T. (2015). Sagnac interferometry with a single atomic clock. Physical Review Letters, 115(16), doi:10.1103/PhysRevLett.115.163001. ISSN 0031-9007

The Sagnac effect enables interferometric measurements of rotation with high precision. Using matter waves instead of light promises resolution enhancement by orders of magnitude that scales with particle mass. So far, the paradigm for matter wave Sa... Read More

iSense: a technology platform for cold atom based quantum technologies (2014)
Conference Proceeding
Bongs, K., Malcolm, J., Ramelloo, C., Zhu, L., Boyer, V., Valenzuela, T., …Wicht, A. (2014). iSense: a technology platform for cold atom based quantum technologies. In Research in Optical Sciencesdoi:10.1364/QIM.2014.QTu3B.1

A breakthrough in cold atom quantum technology is hindered by a bottleneck in the supporting technologies. We discuss a cold atom technology platform developed within the European iSense project, aiming at a gravimeter as demonstrator.