Darkness of two-mode squeezed light in Λ-type atomic system
We show that, under certain circumstances, an optical field in a two-mode squeezed vacuum (TMSV) state can propagate through a lossy atomic medium without degradation or evolution. Moreover, the losses give rise to that state when a different state is initially injected into the medium. Such a situa...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
|
| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab5fac |
| _version_ | 1797750421148663808 |
|---|---|
| author | E S Moiseev Arina Tashchilina S A Moiseev A I Lvovsky |
| author_facet | E S Moiseev Arina Tashchilina S A Moiseev A I Lvovsky |
| author_sort | E S Moiseev |
| collection | DOAJ |
| description | We show that, under certain circumstances, an optical field in a two-mode squeezed vacuum (TMSV) state can propagate through a lossy atomic medium without degradation or evolution. Moreover, the losses give rise to that state when a different state is initially injected into the medium. Such a situation emerges in a Λ-type atomic system, in which both optical transitions are driven by strong laser fields that are two-photon resonant with the respective signal modes. Then the interactions of the two signal modes with the ground-state atomic coherence interfere destructively, thereby ensuring the preservation of the TMSV with a particular squeezing parameter. This mechanism permits unified interpretation of recent experimental results and predicts new phenomena. |
| first_indexed | 2024-03-12T16:32:25Z |
| format | Article |
| id | doaj.art-6a15d72b754f479595851b3267405f3c |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:32:25Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-6a15d72b754f479595851b3267405f3c2023-08-08T15:25:31ZengIOP PublishingNew Journal of Physics1367-26302020-01-0122101301410.1088/1367-2630/ab5facDarkness of two-mode squeezed light in Λ-type atomic systemE S Moiseev0Arina Tashchilina1S A Moiseev2A I Lvovsky3Institute for Quantum Science and Technology, University of Calgary , Calgary AB T2N 1N4, CanadaInstitute for Quantum Science and Technology, University of Calgary , Calgary AB T2N 1N4, CanadaKazan Quantum Center, Kazan National Research Technical University , 10 K. Marx, Kazan, 420111, RussiaInstitute for Quantum Science and Technology, University of Calgary , Calgary AB T2N 1N4, Canada; Clarendon Laboratory, University of Oxford , Oxford OX1 3PU, United Kingdom; P. N. Lebedev Physics Institute , Leninskiy prospect 53, Moscow 119991, Russia; Russian Quantum Center , 100 Novaya St., Skolkovo, Moscow 143025, RussiaWe show that, under certain circumstances, an optical field in a two-mode squeezed vacuum (TMSV) state can propagate through a lossy atomic medium without degradation or evolution. Moreover, the losses give rise to that state when a different state is initially injected into the medium. Such a situation emerges in a Λ-type atomic system, in which both optical transitions are driven by strong laser fields that are two-photon resonant with the respective signal modes. Then the interactions of the two signal modes with the ground-state atomic coherence interfere destructively, thereby ensuring the preservation of the TMSV with a particular squeezing parameter. This mechanism permits unified interpretation of recent experimental results and predicts new phenomena.https://doi.org/10.1088/1367-2630/ab5facdark statesqueezed lightentanglementfour-wave mixingoff-resonant light-atom interaction |
| spellingShingle | E S Moiseev Arina Tashchilina S A Moiseev A I Lvovsky Darkness of two-mode squeezed light in Λ-type atomic system New Journal of Physics dark state squeezed light entanglement four-wave mixing off-resonant light-atom interaction |
| title | Darkness of two-mode squeezed light in Λ-type atomic system |
| title_full | Darkness of two-mode squeezed light in Λ-type atomic system |
| title_fullStr | Darkness of two-mode squeezed light in Λ-type atomic system |
| title_full_unstemmed | Darkness of two-mode squeezed light in Λ-type atomic system |
| title_short | Darkness of two-mode squeezed light in Λ-type atomic system |
| title_sort | darkness of two mode squeezed light in λ type atomic system |
| topic | dark state squeezed light entanglement four-wave mixing off-resonant light-atom interaction |
| url | https://doi.org/10.1088/1367-2630/ab5fac |
| work_keys_str_mv | AT esmoiseev darknessoftwomodesqueezedlightinltypeatomicsystem AT arinatashchilina darknessoftwomodesqueezedlightinltypeatomicsystem AT samoiseev darknessoftwomodesqueezedlightinltypeatomicsystem AT ailvovsky darknessoftwomodesqueezedlightinltypeatomicsystem |