A proposed testbed for detector tomography

Abstract

Measurement is the only part of a general quantum system that has yet to be characterized experimentally in a complete manner. Detector tomography provides a procedure for doing just this; an arbitrary measurement device can be fully characterized, and thus calibrated, in a systematic way without access to its components or its design. The result is a reconstructed POVM containing the measurement operators associated with each measurement outcome. We consider two detectors, a single-photon detector and a photon-number counter, and propose an easily realized experimental apparatus to perform detector tomography on them. We also present a method of visualizing the resulting measurement operators.

9 pages, 4 figures

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• Quantum Decoherence of Single-Photon Counters
• Nonlinearity in Single Photon Detection: Modeling and Quantum Tomography
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• Absolute efficiency estimation of photon-number-resolving detectors using twin beams
• Quantum state estimation with unknown measurements
• Nonclassicality of states and measurements by breaking classical bounds on statistics
• Direct calibration of click-counting detectors
• Effect of the heralding detector properties on the conditional generation of single-photon states
• Entanglement quantification from incomplete measurements: Applications using photon-number-resolving weak homodyne detectors
• Probing the Hotspot Interaction Length in NbN Nanowire Superconducting Single-Photon Detectors
• Quantum description of timing-jitter for single photon ON/OFF detectors
• Self-consistent quantum measurement tomography based on semidefinite programming
• Efficient tomography with unknown detectors
• Detector-Agnostic Phase-Space Distributions
• Directly Characterizing the Coherence of Quantum Detectors by Sequential Measurement
• Room Temperature Single Photon Detection at 1550 nm using van der Waals Heterojunction
• Angular-momentum nonclassicality by breaking classical bounds on statistics
• How to Project onto an Arbitrary Single-Photon Wavepacket
• When quantum state tomography benefits from willful ignorance
• Independent nonclassical tests for states and measurements in the same experiment
• Scalable quantum detector tomography by high-performance computing
• Practical considerations for assignment of photon numbers with SNSPDs
• Reliable optimization of arbitrary functions over quantum measurements