Coherence stability in three-level systems |
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| Authors: | Luis Roa Annette Krügel |
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| Institution: | 1. Departamento de Física, Universidad de Concepción, Casilla 160-C, Concepción, Chile;2. Institut für Festkörpertheorie, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany;1. Heilongjiang Provincial Key Laboratory of Chemical Engineering of Oil and Gas, Northeast Petroleum University, Daqing, China;2. School of Petroleum Engineering, Northeast Petroleum University, Daqing, China;1. Sultan Moulay Slimane University of Beni Mellal, Research Group in Environmental Sciences and Applied Materials (SEMA), FP Khouribga, Morocco;2. Laboratory of Nernest Technology, 163 Willington Street, Sherbrook, J1H5C7, Quebec, Canada;3. IPOSI, National School of Applied Sciences, Sultan Moulay Slimane University, Khouribga, Morocco;1. MRC Metabolic Diseases Unit, University of Cambridge Metabolic Research Laboratories, Institute of Metabolic Science, Addenbrooke''s Hospital, Cambridge, UK;2. Université de Paris, BFA, UMR 8251, CNRS, Paris, France;3. Department of Medicinal Chemistry and Institute for Translational Neuroscience, University of Minnesota, Minneapolis, MN, USA 55455;4. Metabolism, Diabetes, and Obesity Programme, Monash Biomedicine Discovery Institute, and Department of Physiology, Monash University, Clayton, Victoria, Australia;5. Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia;6. Assistance Publique Hôpitaux de Paris, Nutrition Department, Pitié-Salpêtrière Hospital, Paris, France, Sorbonne Université, INSERM, Nutrition and Obesity: Systemic Approaches (NutriOmics) Research Unit, Paris, France;7. Rhythm Pharmaceuticals, Boston, MA, USA 02116;8. Department of Translational Neuroscience, UMCU Brain Centre, University Medical Centre Utrecht, Utrecht University, the Netherlands;9. Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Sweden |
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| Abstract: | We study the decoherence rate for estimating the time at which the coherence instability of a quantum pure state is onset. We analyze the coherence stability of pure states of a three-level quantum system under the effect of a bosonic reservoir and driven by two Raman classical fields. By assuming the boson systems to be in thermal states we find for a symmetric V-system a set of three states free from decoherence and, for a symmetric cascade-system, a two-dimensional subspace whose states are stable against the considered decoherence mechanism. |
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