eprintid: 10189972 rev_number: 6 eprint_status: archive userid: 699 dir: disk0/10/18/99/72 datestamp: 2024-04-08 11:18:19 lastmod: 2024-04-08 11:18:19 status_changed: 2024-04-08 11:18:19 type: article metadata_visibility: show sword_depositor: 699 creators_name: Fragolino, P creators_name: Schut, M creators_name: Toroš, M creators_name: Bose, S creators_name: Mazumdar, A title: Decoherence of a matter-wave interferometer due to dipole-dipole interactions ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. abstract: Matter-wave interferometry with nanoparticles will enable the development of quantum sensors capable of probing ultraweak fields with unprecedented applications for fundamental physics. The high sensitivity of such devices, however. makes them susceptible to several noise and decoherence sources and, as such, can operate only when sufficient isolation from the environment is achieved. It is thus imperative to model and characterize the interaction of nanoparticles with the environment and to estimate its deleterious effects. This paper will aim to study the decoherence of the matter-wave interferometer due to dipole-dipole interactions, which is one of the unavoidable channels for decoherence, even for a neutral micro-crystal. We will use the scattering model for decoherence, characterized by the differential cross section, in order to obtain simple expressions for the decoherence rate due to dipole-dipole interactions in the short- and long-wavelength limits that can be readily applied to estimate the available coherence time. We will conclude by applying the formulas we obtained to estimate the dipole-dipole decoherence rate for the quantum gravity-induced entanglement of masses protocol and discuss if the effects should be mitigated. date: 2024-03 date_type: published publisher: American Physical Society (APS) official_url: http://dx.doi.org/10.1103/physreva.109.033301 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2262279 doi: 10.1103/PhysRevA.109.033301 lyricists_name: Bose, Sougato lyricists_name: Toros, Marko lyricists_id: SBOSE77 lyricists_id: MTORO48 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner full_text_status: public publication: Physical Review A volume: 109 number: 3 article_number: 033301 citation: Fragolino, P; Schut, M; Toroš, M; Bose, S; Mazumdar, A; (2024) Decoherence of a matter-wave interferometer due to dipole-dipole interactions. Physical Review A , 109 (3) , Article 033301. 10.1103/PhysRevA.109.033301 <https://doi.org/10.1103/PhysRevA.109.033301>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10189972/1/PhysRevA.109.033301.pdf