Flexible and experimentally feasible shortcut to quantum Zeno dynamic passage

TL;DR

This paper introduces a flexible, experimentally feasible method to accelerate quantum Zeno dynamics using a generalized external Hamiltonian, demonstrated by speeding up entanglement preparation.

Contribution

It presents a novel, adaptable acceleration scheme for quantum Zeno dynamics that does not require strict invariant relationships, enabling practical implementation.

Findings

Designed an experimentally feasible acceleration Hamiltonian

Successfully sped up entanglement preparation passage

Flexible approach allows arbitrary choice of auxiliary Hamiltonians

Abstract

We propose and discuss a theoretical scheme to speed up Zeno dynamic passage by an external acceleration Hamiltonian. This scheme is a flexible and experimentally feasible acceleration because the acceleration Hamiltonian does not adhere rigidly to an invariant relationship, whereas it can be a more general form $\sum u_{j}(t)H_{cj}$. Here $H_{cj}$ can be arbitrarily selected without any limitation, and therefore one can always construct an acceleration Hamiltonian by only using realizable $H_{cj}$. Applying our scheme, we finally design an experimentally feasible Hamiltonian as an example to speed up an entanglement preparation passage.