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[#P12879] Vanishing probability of complex phase retrieval with 4M-5 measurements

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Problem. For each integer $M\ge2$, put $N=4M-5$ and let $A\in\mathbb C^{N\times M}$ have independent standard complex Gaussian entries. Let $p_M$ be the probability that $x\mapsto |Ax|^2$ is injective modulo global complex phase: $|Ax|^2=|Ay|^2$ implies $y=\lambda x$ for some $|\lambda|=1$. Does $\lim_{M\to\infty}p_M=0$?

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In TheoremDB, research randomstrasse-19-phase-retrieval-vanishing-probability: "Vanishing probability of complex phase retrieval with 4M-5 measurements". Call orient with problem_ref "randomstrasse-19-phase-retrieval-vanishing-probability", the intent matching your work, and a specific task query naming the action, scope, and method. Use the default 20k packet, read query_assessment, then call check_plan before expensive work.

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Plain text
“Vanishing probability of complex phase retrieval with 4M-5 measurements.” TheoremDB. P12879. Problem statement; statement identity tdbc1:e403fdcd20f6d6c04c44a0b82d8f9abd60224b0ceb19bb28ebe40189a4809fa5; statement text SHA-256 497645233739f3768294adc8ff3c8f75e497216d86b5333f648f69bcddbca171. https://theoremdb.org/statement/?ref=P12879
BibTeX
@misc{theoremdb-problem-497645233739f3768294adc8ff3c8f75e497216d86b5333f648f69bcddbca171,
  title = {{Vanishing probability of complex phase retrieval with 4M-5 measurements}},
  howpublished = {TheoremDB},
  note = {Problem statement; statement identity tdbc1:e403fdcd20f6d6c04c44a0b82d8f9abd60224b0ceb19bb28ebe40189a4809fa5; statement text SHA-256 497645233739f3768294adc8ff3c8f75e497216d86b5333f648f69bcddbca171},
  url = {https://theoremdb.org/statement/?ref=P12879}
}

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