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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.14212 |
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| _version_ | 1866915544153718784 |
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| author | Srivathsan, Bharath Gartman, Rafal Francis-Jones, Robert J. A. Mosley, Peter Nunn, Joshua |
| author_facet | Srivathsan, Bharath Gartman, Rafal Francis-Jones, Robert J. A. Mosley, Peter Nunn, Joshua |
| contents | The coherent storage, buffering and retrieval of photons in a quantum memory enables the scalable creation of photonic entangled states via linear optics and repeat-until-success, unlocking applications in quantum communications and photonic quantum computing. Quantum memories based on off-resonant cascaded absorption (ORCA) in atomic vapors allow this storage to be broadband, noise-free, and high efficiency. Here, we implement a cavity-enhanced ORCA memory with reduced footprint and reduced power requirements compared to conventional single-pass schemes. By combining a strong magnetic field with polarization control, we maintain a Doppler-free interaction and eliminate the need for optical pumping. Our design establishes the feasibility of large arrays of ultra-compact, low-power, near-unit-efficiency, noiseless quantum memories running at GHz bandwidth, without the need for atom trapping or cryogenics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_14212 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Toward a Scalable Linear-Cavity Enhanced Warm-Vapor Photonic Quantum Memory Srivathsan, Bharath Gartman, Rafal Francis-Jones, Robert J. A. Mosley, Peter Nunn, Joshua Quantum Physics The coherent storage, buffering and retrieval of photons in a quantum memory enables the scalable creation of photonic entangled states via linear optics and repeat-until-success, unlocking applications in quantum communications and photonic quantum computing. Quantum memories based on off-resonant cascaded absorption (ORCA) in atomic vapors allow this storage to be broadband, noise-free, and high efficiency. Here, we implement a cavity-enhanced ORCA memory with reduced footprint and reduced power requirements compared to conventional single-pass schemes. By combining a strong magnetic field with polarization control, we maintain a Doppler-free interaction and eliminate the need for optical pumping. Our design establishes the feasibility of large arrays of ultra-compact, low-power, near-unit-efficiency, noiseless quantum memories running at GHz bandwidth, without the need for atom trapping or cryogenics. |
| title | Toward a Scalable Linear-Cavity Enhanced Warm-Vapor Photonic Quantum Memory |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.14212 |