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Critical quantum metrology relies on the extreme sensitivity of a system's eigenstates near the critical point of a quantum phase transition to Hamiltonian perturbations.
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L. Garbe, M. Bina, A. Keller, M. G. A. Paris, and S. Felicetti, Critical Quantum Metrology with a Finite-Component Quantum Phase Transition, Phys. Rev. Lett. 124
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C. Hotter, H. Ritsch, and K. Gietka, Combining Critical and Quantum Metrology, Phys. Rev. Lett. 132
2024
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L. Ostermann and K. Gietka, Temperature-enhanced critical quantum metrology, Phys. Rev. A 109
2024
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R. Zhang, W. Ding, Z. Zhang, L. Shao, Y. Zhang, and X. Wang, Relations between quantum metrology and criticality in general su(1,1) systems, Phys. Rev. A 110
2024
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Critical metrology of minimally accessible anisotropic spin chains, Sci. Rep. 14
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G. Mbeng, A. Russomanno, and G. Santoro, The quantum Ising chain for beginners, SciPost Phys. Lect. Notes , 82 (2024)
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