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quant-ph2026
Rotational Quantum Tunneling of a Magnetic Dipole in a Superconducting Trap
Francis J. Headley, Fabian Müller, Emre Köse +3
We study the quantum dynamics of the rotational degree of freedom of a nano-magnet trapped in a superconducting trap. The nano-magnet is modeled as a magnetic dipole with magnetiza…
quant-ph2026
Path Integral Approach to Quantum Fisher Information
Francis J. Headley, Mahdi RouhbakhshNabati, Henry Harper-Gardner +3
We present a real-time path-integral formulation of the quantum Fisher information for dynamical parameter estimation. For pure states undergoing unitary evolution, we show that th…