Abstracts
Poster Abstracts | Talk Abstracts
Goldilocks probes for noisy interferometry via quantum annealing to criticality
Presenting Author: Gabriel Durkin,
As a prototype for interferometric probe-state preparation we examine a model Hamiltonian of N>> 1 uniformly coupled spins in a transverse magnetic field by mapping it onto a variable-mass one-dimensional particle in a continuous pseudo-potential. This strategy reveals all the qualitative features of the original system beyond mean-field or large classical spin models. It illustrates explicitly a graceful warping from a unimodal to bi-modal ground state in the phase transition region. The partially-entangled ground state there exhibits characteristics for enhanced phase estimation in a decoherent environment.
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