Generation of a Cat State in an Optical Sideband
| Autor: | Elanor H. Huntington, Timothy C. Ralph, Akira Furusawa, Shuntaro Takeda, Takahiro Serikawa, Hidehiro Yonezawa, Jun-ichi Yoshikawa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Photon Sideband Physics::Instrumentation and Detectors business.industry Cat state Physics::Optics General Physics and Astronomy Quantum Physics 01 natural sciences law.invention 010309 optics Optics law 0103 physical sciences Optical parametric oscillator Physics::Accelerator Physics Wigner distribution function 010306 general physics business Phase modulation Beam splitter Squeezed coherent state |
| Zdroj: | Physical review letters. 121(14) |
| ISSN: | 1079-7114 |
| Popis: | We propose a method to subtract a photon from a double sideband mode of continuous-wave light. The central idea is to use phase modulation as a frequency sideband beam splitter in the heralding photon subtraction scheme, where a small portion of the sideband mode is down-converted to 0 Hz to provide a trigger photon. An optical cat state is created by applying the proposed method to a squeezed state at 500 MHz sideband, which is generated by an optical parametric oscillator. The Wigner function of the cat state reconstructed from a direct homodyne measurement of the 500 MHz sideband modes shows the negativity of W(0,0)=-0.088±0.001 without any loss corrections. |
| Databáze: | OpenAIRE |
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