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Quantum sensing in Kerr parametric oscillators

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arxiv 2407.14590 v3 pith:Z6RVJPCO submitted 2024-07-19 quant-ph cond-mat.str-el

classification quant-phcond-mat.str-el
keywords quantumphasesensingkerroscillatorsparametricabsenceachieved
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Quantum metrology and quantum sensing aim to use quantum properties to enhance measurement precision beyond what could be classically achieved. Here, we demonstrate how the analysis of the phase space structure of the classical limit of Kerr parametric oscillators can be used for determining control parameters values that lead to the squeezing of the uncertainty in position and the amplification of the quantum Fisher information. We also explore how quantum sensing can benefit from excited-state quantum phase transitions, even in the absence of a conventional quantum phase transition. The system that we consider models exciton-polariton condensates and superconducting circuits, making our study relevant for potential experimental applications.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Manifestations of flow topology in a quantum driven-dissipative system

    quant-ph 2025-08 conditional novelty 6.0 of 10

    Quantum fluctuations preserve the flow-topological structure of the classical driven-dissipative Kerr oscillator, and a chirality response spectrum can detect topological phases without Liouvillian gap closing.

  2. Squeezed states for Frenkel-like two-fermion composite bosons

    quant-ph 2025-12 conditional novelty 5.0 of 10

    Squeezed Frenkel-like cobosons, defined as eigenstates of a Bogoliubov-transformed coboson operator, have uncertainty product (1−⟨D⟩)/2, dropping below canonical 1/2 due to Pauli blocking.

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