Homodyne Detection of Temporally Resolved Quantum States

• URL: http://arxiv.org/abs/2602.13946v1
• Date: Sun, 15 Feb 2026 01:12:36 GMT
• Title: Homodyne Detection of Temporally Resolved Quantum States
• Authors: Owen Sandner, Brendan Mackey, Yuyang Liu, Connor Kupchak, Andrew MacRae,
• Abstract summary: We present an analysis of the time domain measurement of temporally resolvable quantum states using balanced homodyne detection.<n>A complete implementation of the method is provided through open source code on a GitHub repository.
• Score: 7.818410138554204
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present an analysis of the time domain measurement of temporally resolvable quantum states using balanced homodyne detection. Our approach outlines a formalism of detecting quantum states in arbitrary temporal modes via projection of the temporal mode onto a natural detector basis. We then present an algorithm for simulating the resultant photocurrent of continuous homodyne detection in the presence of a temporally resolved mode, and use this algorithm to explore the effects of realistic measurement errors on marginal reconstruction and quantum state tomography. A complete implementation of the method is provided through open source code on a GitHub repository.

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