Optical signatures of coherence in molecular dimers
- URL: http://arxiv.org/abs/2505.13435v1
- Date: Mon, 19 May 2025 17:57:54 GMT
- Title: Optical signatures of coherence in molecular dimers
- Authors: Priyankar Banerjee, Adam Burgess, Julian Wiercinski, Moritz Cygorek, Erik M. Gauger,
- Abstract summary: We investigate experimentally measurable quantum correlations in a coupled molecular dimer that strongly interacts with its vibrational environment.<n>We find that projective measurements can produce cooperative signatures even when emitters are arranged to each other.<n>This work enhances our understanding of cooperative emission from two coupled emitters and offers direction for future experiments on probing their coherent dynamics.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We calculate experimentally measurable signatures of quantum correlations in a coupled molecular dimer that strongly interacts with its vibrational environment. We investigate intensity and mode-resolved photon coincidences for different relative orientations of such dimers, and observe spatio-temporal correlations for various configurations. We find that projective measurements can produce cooperative signatures even when emitters are arranged orthogonal to each other. To model effects of vibrational environments that are present in realistic experimental situations, we use the polaron framework. Further, we also account for the effects of finite instrument response, varying temperature, and presence of static disorder. We analyse the effect of disorder in both dimer orientation and measurement direction and find that photon coincidences remain well-resolvable using state-of-the-art detectors. This work enhances our understanding of cooperative emission from two coupled emitters and offers direction for future experiments on probing their coherent dynamics.
Related papers
- Asymmetric Biphoton Generation under Ground-State Decoherence and Phase Mismatch in a Cold Atomic Ensemble [0.0]
We investigate how ground-state decoherence and phase mismatch influence biphoton generation in spontaneous four-wave mixing.<n>Our results reveal significant asymmetry in the Stokes and anti-Stokes photon generation rates.<n>Although ground-state decoherence reduces the generation of temporally correlated photons, it paradoxically enhances biphoton purity.
arXiv Detail & Related papers (2025-05-10T13:57:57Z) - Propagation of two-particle correlations across the chaotic phase for interacting bosons [0.0]
We analyze the propagation of experimentally relevant two-particle correlations for one-dimensional interacting bosons.<n>We show that many-body chaos induces the emergence of an effective diffusive regime for the fully coherent correlation dynamics.
arXiv Detail & Related papers (2024-10-14T14:48:45Z) - Wave-particle correlations in multiphoton resonances of coherent
light-matter interaction [0.0]
We discuss the conditional measurement of field amplitudes by a nonclassical photon sequence in the Jaynes-Cummings (JC) model under multiphoton operation.
arXiv Detail & Related papers (2024-02-14T16:51:54Z) - Probing dynamics of a two-dimensional dipolar spin ensemble using single
qubit sensor [62.997667081978825]
We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal.
We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder.
Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
arXiv Detail & Related papers (2022-07-21T18:00:17Z) - Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator.
We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
arXiv Detail & Related papers (2021-07-23T07:30:57Z) - Photon-mediated interactions near a Dirac photonic crystal slab [68.8204255655161]
We develop a theory of dipole radiation near photonic Dirac points in realistic structures.
We find positions where the nature of the collective interactions change from being coherent to dissipative ones.
Our results significantly improve the knowledge of Dirac light-matter interfaces.
arXiv Detail & Related papers (2021-07-01T14:21:49Z) - Two-photon resonance fluorescence of two interacting non-identical
quantum emitters [77.34726150561087]
We study a system of two interacting, non-indentical quantum emitters driven by a coherent field.
We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters.
This can be exploited for applications such as superresolution imaging of point-like sources.
arXiv Detail & Related papers (2021-06-04T16:13:01Z) - Observation-dependent suppression and enhancement of two-photon
coincidences by tailored losses [68.8204255655161]
Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter.
In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement.
Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
arXiv Detail & Related papers (2021-05-12T06:47:35Z) - Light-matter interactions near photonic Weyl points [68.8204255655161]
Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point.
We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
arXiv Detail & Related papers (2020-12-23T18:51:13Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.