Bulletin of the American Physical Society
2023 Annual Meeting of the APS Mid-Atlantic Section
Friday–Sunday, November 3–5, 2023; University of Delaware, Newark, Delaware
Session G02: Atomic, Molecular, and Optical Physics II
9:00 AM–10:36 AM,
Sunday, November 5, 2023
University of Delaware
Room: Gore 104
Chair: Brandon Mitchell, West Chester University/Physics
Abstract: G02.00005 : Characterizing The Quantum State Of Dark Matter: An Open Quantum Systems Approach*
10:12 AM–10:24 AM
Presenter:
Ryan Petery
(University of Delaware)
Authors:
Ryan Petery
(University of Delaware)
Jose Bernal Rodriguez
(University of Delaware)
Kevin Joven
(University of Delaware)
Swati Singh
(University of Delaware)
Obtaining insight into the constituents of DM and their interactions with normal, i.e., Standard Model (SM) matter, has inspired a wide range of large and small-scale experimental efforts that harness current technology to look for the feeble interactions between SM matter and DM with unprecedented precision. Several novel experimental approaches involve quantum systems or measurements performed at the limits imposed by quantum mechanics. This is particularly relevant for the case of ultralight bosonic dark matter (UBDM), where dark matter is assumed to be a bosonic field/particle present in high occupation numbers around the earth. While a classical treatment of UBDM and its detectors is well-motivated, future detection strategies would benefit from a quantum treatment of both the field and its interaction with a, perhaps, quantum detector. The field of quantum optics already provides a rigorous formalism for characterizing bosonic fields. Here we apply the quantum theory of optical coherence to characterize the statistical properties of the UBDM field and an open quantum system approach to the interaction between the UBDM field and a detector. Our theoretical treatment has implications in uncovering the astrophysical history of the UBDM field, as well as informing quantum metrology-based strategies for its detection.
*This work is supported by the Gordon and Betty Moore Foundation, National Science Foundation grants PHY-1912480 and PHY-2047707, and the AFOSR DEPSCoR-RC program A9550-22-1-0323.
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