dorsal/arxiv
View SchemaJump-like unravelings for non-Markovian open quantum systems
| Authors | Jay Gambetta, T. Askerud, H. M. Wiseman |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0401171 |
| URL | https://arxiv.org/abs/quant-ph/0401171 |
| DOI | 10.1103/PhysRevA.69.052104 |
| Journal | Phys. Rev. A 69, 052104 (2004) |
Abstract
Non-Markovian evolution of an open quantum system can be `unraveled' into pure state trajectories generated by a non-Markovian stochastic (diffusive) Schr\"odinger equation, as introduced by Di\'osi, Gisin, and Strunz. Recently we have shown that such equations can be derived using the modal (hidden variable) interpretation of quantum mechanics. In this paper we generalize this theory to treat jump-like unravelings. To illustrate the jump-like behavior we consider a simple system: A classically driven (at Rabi frequency $\Omega$) two-level atom coupled linearly to a three mode optical bath, with a central frequency equal to the frequency of the atom, $\omega_0$, and the two side bands have frequencies $\omega_0\pm\Omega$. In the large $\Omega$ limit we observed that the jump-like behavior is similar to that observed in this system with a Markovian (broad band) bath. This is expected as in the Markovian limit the fluorescence spectrum for a strongly driven two level atom takes the form of a Mollow triplet. However the length of time for which the Markovian-like behaviour persists depends upon {\em which} jump-like unraveling is used.
{
"annotation_id": "e0baab3b-bae5-4a45-9285-37d7a8615bdc",
"date_created": "2026-03-02T18:02:05.747000Z",
"date_modified": "2026-03-02T18:02:05.747000Z",
"file_hash": "8e00b3cdfc2d560f0e88434e94032a707864f950b0a508d80d9b54bbd657bb04",
"private": false,
"record": {
"abstract": "Non-Markovian evolution of an open quantum system can be `unraveled\u0027 into\npure state trajectories generated by a non-Markovian stochastic (diffusive)\nSchr\\\"odinger equation, as introduced by Di\\\u0027osi, Gisin, and Strunz. Recently\nwe have shown that such equations can be derived using the modal (hidden\nvariable) interpretation of quantum mechanics. In this paper we generalize this\ntheory to treat jump-like unravelings. To illustrate the jump-like behavior we\nconsider a simple system: A classically driven (at Rabi frequency $\\Omega$)\ntwo-level atom coupled linearly to a three mode optical bath, with a central\nfrequency equal to the frequency of the atom, $\\omega_0$, and the two side\nbands have frequencies $\\omega_0\\pm\\Omega$. In the large $\\Omega$ limit we\nobserved that the jump-like behavior is similar to that observed in this system\nwith a Markovian (broad band) bath. This is expected as in the Markovian limit\nthe fluorescence spectrum for a strongly driven two level atom takes the form\nof a Mollow triplet. However the length of time for which the Markovian-like\nbehaviour persists depends upon {\\em which} jump-like unraveling is used.",
"arxiv_id": "quant-ph/0401171",
"authors": [
"Jay Gambetta",
"T. Askerud",
"H. M. Wiseman"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.69.052104",
"journal_ref": "Phys. Rev. A 69, 052104 (2004)",
"title": "Jump-like unravelings for non-Markovian open quantum systems",
"url": "https://arxiv.org/abs/quant-ph/0401171"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "1ae581aa-6450-4855-a17c-ea0207c12c29",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}