Dhruv Jani
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Dhruv Jani has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Ashlee R. Caddell
The University of Queensland
1 shared publication - Benjamin M. Roberts
School of Mathematics and Physics The University of Queensland 4072 Brisbane Qld Australia
1 shared publication - Leonardo Giani
School of Mathematics and Physics The University of Queensland 4072 Brisbane Qld Australia
1 shared publication - Martin Steinel
Physikalisch-Technische Bundesanstalt
1 shared publication - Melina Filzinger
Physikalisch-Technische Bundesanstalt
1 shared publication - Nils Huntemann
Physikalisch-Technische Bundesanstalt
1 shared publication
Latest Publications
- Open Access
- 23 January 2025
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 134 (3) , 031001
Ultralight Dark Matter Search with Space-Time Separated Atomic Clocks and Cavities
We devise and demonstrate a method to search for nongravitational couplings of ultralight dark matter to standard model particles using space-time separated atomic clocks and cavity-stabilized lasers. By making use of space-time separated sensors, which probe different values of an oscillating dark matter field, we can search for couplings that cancel in typical local experiments. This provides sensitivity to both the temporal and spatial fluctuations of the field. We demonstrate this method using existing data from a frequency comparison of lasers stabilized to two optical cavities connected via a 2220 km fiber link [Schioppo , ], and from the atomic clocks on board the global positioning system satellites. Our analysis results in constraints on the coupling of scalar dark matter to electrons, d m e , for masses between 10 − 19 and 2 × 10 − 15 eV / c 2 . These are the first constraints on d m e alone in this mass range.
- 23 January 2025
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 134 (3) , 031001
Open AccessUltralight Dark Matter Search with Space-Time Separated Atomic Clocks and Cavities
We devise and demonstrate a method to search for nongravitational couplings of ultralight dark matter to standard model particles using space-time separated atomic clocks and cavity-stabilized lasers. By making use of space-time separated sensors, which probe different values of an oscillating dark matter field, we can search for couplings that cancel in typical local experiments. This provides sensitivity to both the temporal and spatial fluctuations of the field. We demonstrate this method using existing data from a frequency comparison of lasers stabilized to two optical cavities connected via a 2220 km fiber link [Schioppo , ], and from the atomic clocks on board the global positioning system satellites. Our analysis results in constraints on the coupling of scalar dark matter to electrons, d m e , for masses between 10 − 19 and 2 × 10 − 15 eV / c 2 . These are the first constraints on d m e alone in this mass range.