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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.02077 |
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| _version_ | 1866929611589287936 |
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| author | Carver, Christian Marchant, Jared Fisher, Benjamin Townsend, Nicholas Stowell, Tyler Barlow, Austin Arnesen, Benjamin Chiang, Shiuh-Hua Wood Camacho, Ryan M. |
| author_facet | Carver, Christian Marchant, Jared Fisher, Benjamin Townsend, Nicholas Stowell, Tyler Barlow, Austin Arnesen, Benjamin Chiang, Shiuh-Hua Wood Camacho, Ryan M. |
| contents | In this work, we perform on-chip quantum random number generation (QRNG) that uses a novel differential amplifier configuration for conjugate homodyne detection. Leveraging separate integrated photonics and integrated analog circuit platforms, we present an alternative method for QRNG. This approach exploits the observable $\hat{\text{Z}}$, derived from the sum of squared conjugate quadrature distributions which we compare to the traditional single quadrature approach. Utilizing this method, we report a shot noise clearance (SNC) of 25.6 dB and a common mode rejection ratio (CMRR) of 69 dB for our homodyne detection system. We used a variety of design tools to model and predict performance and compare results with our measurements. The realization of our QRNG system consists of a 90° optical hybrid, a dual differential transimpedance amplifier (TIA), and a field-programmable gate array (FPGA) used for the real-time post-processing to produce a uniform random bitstream. The randomness extraction is implemented using a Toeplitz hashing algorithm and is validated by the National Institute of Standards and Technology (NIST) randomness test suites. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_02077 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Integrated Differential Conjugate Homodyne Detection for Quantum Random Number Generation Carver, Christian Marchant, Jared Fisher, Benjamin Townsend, Nicholas Stowell, Tyler Barlow, Austin Arnesen, Benjamin Chiang, Shiuh-Hua Wood Camacho, Ryan M. Quantum Physics In this work, we perform on-chip quantum random number generation (QRNG) that uses a novel differential amplifier configuration for conjugate homodyne detection. Leveraging separate integrated photonics and integrated analog circuit platforms, we present an alternative method for QRNG. This approach exploits the observable $\hat{\text{Z}}$, derived from the sum of squared conjugate quadrature distributions which we compare to the traditional single quadrature approach. Utilizing this method, we report a shot noise clearance (SNC) of 25.6 dB and a common mode rejection ratio (CMRR) of 69 dB for our homodyne detection system. We used a variety of design tools to model and predict performance and compare results with our measurements. The realization of our QRNG system consists of a 90° optical hybrid, a dual differential transimpedance amplifier (TIA), and a field-programmable gate array (FPGA) used for the real-time post-processing to produce a uniform random bitstream. The randomness extraction is implemented using a Toeplitz hashing algorithm and is validated by the National Institute of Standards and Technology (NIST) randomness test suites. |
| title | Integrated Differential Conjugate Homodyne Detection for Quantum Random Number Generation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2412.02077 |