Fourier Transform Quantum State Tomography
arXiv:1211.1399 · doi:10.1103/PhysRevA.87.012117
Abstract
We propose a technique for performing quantum state tomography of photonic polarization-encoded multi-qubit states. Our method uses a single rotating wave plate, a polarizing beam splitter and two photon-counting detectors per photon mode. As the wave plate rotates, the photon counters measure a pseudo-continuous signal which is then Fourier transformed. The density matrix of the state is reconstructed using the relationship between the Fourier coefficients of the signal and the Stokes' parameters that represent the state. The experimental complexity, i.e. different wave plate rotation frequencies, scales linearly with the number of qubits.
7 pages, 4 figures, minor changes from v1
References in corpus (7)
- Diluted maximum-likelihood algorithm for quantum tomography
- Choice of Measurement Sets in Qubit Tomography
- Knowledge and ignorance in incomplete quantum state tomography
- Experimental characterization of qutrits using SIC-POVMs
- Experimental Polarization State Tomography using Optimal Polarimeters
- Incomplete quantum state estimation: a comprehensive study
- Robustness of raw quantum tomography