Coherent coupling between multiple ferrimagnetic spheres and a microwave cavity at millikelvin temperatures
نویسندگان
چکیده
The spin resonance of electrons can be coupled to a microwave cavity mode obtain photon-magnon hybrid system. These quantum systems are widely studied for both fundamental physics and technological applications. In this article, the behavior large number ferrimagnetic spheres single is put under test. We use second-quantization modeling harmonic oscillators theoretically describe our experimental setup understand influence several parameters. magnon-polariton dispersion relation used characterize system, with particular focus on vacuum Rabi splitting due multiple spheres. combine results obtained simple analyze more complex one, show that it devised in such way minimize degrees freedom needed completely it. By studying single-sphere coupling two possible size-effects related sample diameter have been identified, while multiple-spheres configurations reveal how upscale This characterization useful implementation an axion-to-electromagnetic field transducer ferromagnetic haloscope dark matter searches. Our dedicated setup, consisting ten 2 mm-diameter YIG copper cavity, aim at mK temperatures. Moreover, we novel applications optimally-controlled foreseen setups embedding samples.
منابع مشابه
Cavity Optomechanics at Millikelvin Temperatures
The field of cavity optomechanics, which concerns the coupling of a mechanical object’s motion to the electromagnetic field of a high finesse cavity, allows for exquisitely sensitive measurements of mechanical motion, from large-scale gravitational wave detection to microscale accelerometers. Moreover, it provides a potential means to control and engineer the state of a macroscopic mechanical o...
متن کاملTwo-port microwave calibration at millikelvin temperatures.
In this work we introduce a system for 2-port microwave calibration at millikelvin temperatures operating at the coldest stage of a dilution refrigerator by use of an adapted thru-reflect-line algorithm. We show that this can be an effective tool for characterizing common 50 Ω microwave components with better than 0.1 dB accuracy at temperatures that are relevant to many current experiments in ...
متن کاملMagnetism in SQUIDs at millikelvin temperatures.
We have characterized the temperature dependence of the flux threading dc SQUIDs cooled to millikelvin temperatures. The flux increases as 1/T as temperature is lowered; moreover, the flux change is proportional to the density of trapped vortices. The data are compatible with the thermal polarization of surface spins in the trapped fields of the vortices. In the absence of trapped flux, we obse...
متن کاملSilicon optomechanical crystal resonator at millikelvin temperatures
Seán M. Meenehan,1 Justin D. Cohen,1 Simon Gröblacher,1,2 Jeff T. Hill,1 Amir H. Safavi-Naeini,1 Markus Aspelmeyer,2 and Oskar Painter1,* 1Institute for Quantum Information and Matter and Thomas J. Watson, Sr., Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA 2Vienna Center for Quantum Science and Technology (VCQ), Faculty of Physics, University...
متن کاملCalculations for Magnetism in SQUIDs at Millikelvin Temperatures
S. Sendelbach, D. Hover, A. Kittel, M. Mück, John M. Martinis, and R. McDermott1,∗ Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA Institut für Physik, Carl von Ossietzky Universität, D-26111 Oldenburg, Germany Institut für Angewandte Physik, Justus-Leibig-Universität Gießen, D-35392 Gießen, Germany and Department of Physics, University of California, Santa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.104.064426