APL2020.pdf (2.57 MB)
Coherent coupling of a trapped electron to a distant superconducting microwave cavity
journal contribution
posted on 2023-06-09, 21:47 authored by April Cridland Mathad, John H Lacy, Jonathan Pinder, Alberto Jesús Uribe Jiménez, Ryan WillettsRyan Willetts, Raquel Alvarez GarciaRaquel Alvarez Garcia, Jose Verdu GalianaJose Verdu GalianaWe investigate theoretically the coupling of a single electron in a planar Penning trap with a remote superconducting microwave cavity. Coupling frequencies around O = 2p · 1 MHz can be reached with resonators with a loaded quality factor of Q = 10^5, allowing for the strong coupling regime. The electron and the cavity form a system of two coupled quantum harmonic oscillators. This is a hybrid and linear microwave quantum network. We show that the coherent interaction can be sustained over distances of a few mm up to several cm. Similar to classical linear MW circuits, the coherent quantum exchange of photons is ruled by the impedances of the electron and cavity. As one concrete application, we discuss the entanglement of the cyclotron motions of two electrons located in two separate traps.
Funding
Quantum Microwave Sensor; G1693; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/N003675/1
History
Publication status
- Published
File Version
- Accepted version
Journal
Applied Physics LettersISSN
0003-6951Publisher
American Institute of PhysicsExternal DOI
Issue
15Volume
117Page range
1-6Article number
a154001Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2020-10-06First Open Access (FOA) Date
2020-10-06First Compliant Deposit (FCD) Date
2020-10-05Usage metrics
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