Squeezing- and non-Gaussianity-enhanced quantum thermometry and magnetometry via quadratic interactions in optomechanical-like systems

arXiv:2602.20905 · quant-ph · Submitted 2026-02-24 · Read on arXiv

quant-ph

Submitted: 2026-02-24

Updated: 2026-09-23

Terminology

• Non-Gaussianity — 23× in this paper · explained in 2 episodes
• Wigner function — 12× in this paper · explained in 2 episodes
• Fisher Information — 5× in this paper · explained in 3 episodes
• Entanglement — 3× in this paper · explained in 3 episodes
• Effective Hamiltonian — 2× in this paper · explained in 2 episodes
• Ancillary Qubits — 1× in this paper · explained in 1 episode
• Heisenberg Scaling — 1× in this paper · explained in 4 episodes
• Quantum Fisher Information (QFI) — 1× in this paper · explained in 13 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Spin Squeezing — 1× in this paper · explained in 2 episodes
• Stark Shift — 1× in this paper · explained in 2 episodes

Sources

• Lecture Notes on the Theory of Open Quantum Systems
• Enhanced frequency estimation by non-Gaussianity of Fock states

Related papers

• Reconquering Bell sampling on qudits: stabilizer learning and testing, quantum pseudorandomness bounds, and more
• Encrypted clones can leak: Classification of informative subsets in Quantum Encrypted Cloning
• Polynomial-time classical and quantum simulation of quantum impurity models
• Theory of quantum-enhanced interferometry with general Markovian light sources
• A convergent hierarchy of spectral gap certificates for qubit Hamiltonians
• Universal Bound and Phase Transition in Many-Body Fermionic Non-Gaussianity