Superconducting single-photon camera for quantum state tomography
The polarization of quantum light provides a versatile and robust platform for implementing optical quantum technologies. Polarization quantum states are widely used in fundamental tests of quantum mechanics, quantum key distribution and entanglement swapping, quantum metrology and quantum computi...
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| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/177984 https://www.optica.org/events/topical_meetings/quantum/ |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The polarization of quantum light provides a versatile and robust platform for implementing optical quantum
technologies. Polarization quantum states are widely used in fundamental tests of quantum mechanics, quantum
key distribution and entanglement swapping, quantum metrology and quantum computing. However, the practical
utility of such states is defined by the ability to characterize them quickly and reliably. Quantum state tomography,
a set of polarization measurements that recovers the density matrix of an unknown state, is routinely performed
using bulky optical components and single-photon detectors, as shown in Fig. 1(a). Since active rotation of optical
components (e.g., wave plates) is usually required to perform measurements in different polarization bases, this
approach has limited scalability and robustness. |
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