Limiting Spectral Distribution of Random Self-Adjoint Quantum Channels

Cécilia Lancien, Patrick Oliveira Santos, Pierre Youssef

Research output: Contribution to journalArticlepeer-review

Abstract

We study the limiting spectral distribution of quantum channels whose Kraus operators sampled as n×n random Hermitian matrices satisfying certain assumptions. We show that when the Kraus rank goes to infinity with n, the limiting spectral distribution (suitably rescaled) of the corresponding quantum channel coincides with the semi-circle distribution. When the Kraus rank is fixed, the limiting spectral distribution is no longer the semi-circle distribution. It corresponds to an explicit law, which can also be described using tools from free probability.

Original languageEnglish (US)
Article number15
JournalMathematical Physics Analysis and Geometry
Volume27
Issue number3
DOIs
StatePublished - Sep 2024

ASJC Scopus subject areas

  • Mathematical Physics
  • Geometry and Topology

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