Three-dimensional compact photonic circuits for quantum state tomography of multipath qudits in any finite dimension
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Universidade Federal de Minas Gerais
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Artigo de periódico
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We propose compact three-dimensional photonic circuit designs that guarantee a remarkable
reduction in the complexity of circuits to perform quantum state tomography of N-dimensional
path qudits. We obtain solutions such that the number of beam splitters obeys a polynomial
function of degree three with the quantum system dimension, whereas, in current proposals, this
quantity grows with a polynomial function of degree four. In addition, the optical depth reduces
from quadratic to linear over the dimension of the Hilbert space.
Abstract
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Tomografia quântica, Informação quântica, Qudits
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Quantum tomography, Quantum information, Photonic circuits, Qudits
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https://iopscience.iop.org/article/10.1088/2040-8986/ac23a6