Time-resolved detection and mode-mismatch in a linear optics quantum gate
arXiv:1101.3812 · doi:10.1088/1367-2630/13/5/053036
Abstract
Linear optics is a promising candidate for the implementation of quantum information processing protocols. In such systems single photons are employed to represent qubits. In practice, single photons produced from different sources will not be perfectly temporally and frequency matched. Therefore understanding the effects of temporal and frequency mismatch is important for characterising the dynamics of the system. In this paper we discuss the effects of temporal and frequency mismatch, how they differ, and what their effect is upon a simple linear optics quantum gate. We show that temporal and frequency mismatch exhibit inherently different effects on the operation of the gate. We also consider the spectral effects of the photo-detectors, focusing on time-resolved detection, which we show has a strong impact on the operation of such protocols.
References in corpus (11)
- Resource-efficient linear optical quantum computation
- Shor's quantum factoring algorithm on a photonic chip
- Quantum weak values
- Quantum Beat of Two Single Photons
- Experimental Analysis of a 4-Qubit Cluster State
- Modeling photo-detectors in quantum optics
- Frequency and temporal effects in linear optical quantum computing
- Quantum gate characterization in an extended Hilbert space
- Error models for mode-mismatch in linear optics quantum computing
- Effect of frequency mismatched photons in quantum information processing
- Practical limitations in optical entanglement purification