Holdaway, DIH;
Notararigo, V;
Olaya-Castro, A;
(2018)
Perturbation approach for computing frequency- and time-resolved photon correlation functions.
Physical Review A
, 98
(6)
, Article 063828. 10.1103/PhysRevA.98.063828.
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Abstract
We propose an alternative formulation of the sensor method presented in Phys. Rev. Lett. 109, 183601 (2012) for the calculation of frequency-filtered and time-resolved photon correlations. Our approach is based on an algebraic expansion of the joint steady state of quantum emitter and sensors with respect to the emitter-sensor coupling parameter ε. This allows us to express photon correlations in terms of the open quantum dynamics of the emitting system only and ensures that computation of correlations are independent on the choice of a small value of ε. Moreover, using time-dependent perturbation theory, we are able to express the frequency- and time-resolved second-order photon correlation as the addition of three components, each of which gives insight into the physical processes dominating the correlation at different time scales. We consider a bioinspired vibronic dimer model to illustrate the agreement between the original formulation and our approach.
| Type: | Article |
|---|---|
| Title: | Perturbation approach for computing frequency- and time-resolved photon correlation functions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.98.063828 |
| Publisher version: | https://doi.org/10.1103/PhysRevA.98.063828 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10071731 |
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