| Автор | Matteo G A Paris |
| Дата выпуска | 1999-12-01 |
| dc.description | A two-step interaction scheme involving <sup>(2)</sup> and <sup>(3)</sup> nonlinear media is suggested for the generation of Schrödinger cat-like states of a single-mode optical field. In the first step, a weak coherent signal undergoes a self-Kerr phase modulation in a <sup>(3)</sup> crystal, leading to a Kerr kitten, namely a microscopic superposition of two coherent states with opposite phases. In the second step, such a Kerr kitten enters a <sup>(2)</sup> crystal and, in turn, plays the role of a quantum seed for stimulated phase-sensitive amplification. The output state in the above-threshold regime consists in a quantum superposition of mesoscopically distinguishable squeezed states, i.e. an optical cat-like state. The whole setup does not rely on conditional measurements, and is robust against decoherence, as only weak signals interact with the Kerr medium. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Generation of mesoscopic quantum superpositions through Kerr-stimulated degenerate downconversion |
| Тип | paper |
| DOI | 10.1088/1464-4266/1/6/308 |
| Electronic ISSN | 1741-3575 |
| Print ISSN | 1464-4266 |
| Журнал | Journal of Optics B: Quantum and Semiclassical Optics |
| Том | 1 |
| Первая страница | 662 |
| Последняя страница | 667 |
| Аффилиация | Matteo G A Paris; Theoretical Quantum Optics Group, INFM and Dipartimento di Fisica `Alessandro Volta', Università di Pavia, via Bassi 6, I-27100 Pavia, Italy and Optics Section, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BZ, UK |
| Выпуск | 6 |
