Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session M17: Hybrid Systems - Spins, Quantum Dots, Microwaves
11:15 AM–2:15 PM,
Wednesday, March 4, 2020
Sponsoring Unit: DQI
Chair: Karl Petersson, Niels Bohr Inst
Abstract: M17.00012 : Quantum physics with pulses of radiation*
The ability to control quantum systems and apply special superposition states and entangled states of light and matter is pursued with many experimental platforms and forms the basis of strategies for quantum computing, communication and metrology. I shall discuss the interaction of a quantum system with a pulse of quantized radiation. While crucial for multiple effects in quantum optics and for the entire concept of flying and stationary qubits, quantum optics textbooks do not provide a formal description of this foundational and elementary interaction process. I shall present a new (and simple) theoretical formalism  that accounts for the interaction of travelling pulses of quantized radiation with a local quantum system such as a qubit, a spin or a multi-level atom in a cavity. Applications of the theory are shown for recent experiments with optical, microwave and acoustic quantum pulses.
 Alexander Holm Kiilerich and Klaus Mølmer, Phys. Rev. Lett. 123, 123604 (2019).
*This research was supported by the the Villum Foundation, the European Union FETFLAG program, Grant No. 820391 (SQUARE),and the U.S. ARL-CDQI program through cooperative Agreement No. W911NF-15-2-0061.
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