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quant-ph2024
Truncation technique for variational quantum eigensolver for Molecular Hamiltonians
Qidong Xu, Kanav Setia
The variational quantum eigensolver (VQE) is one of the most promising quantum algorithms for the near-term noisy intermediate-scale quantum (NISQ) devices. The VQE typically invol…
quant-ph2021
Unruh-DeWitt detector's response to a non-relativistic particle
Qidong Xu
Unruh-DeWitt (UDW) detector that couples locally to a quantum field is an important tool for operationally studying field properties. Here, we study the response of an inertial UDW…
quant-ph2020★ 37 cited
Gravitational waves affect vacuum entanglement
Qidong Xu, Shadi Ali Ahmad, Alexander R. H. Smith
The entanglement harvesting protocol is an operational way to probe vacuum entanglement. This protocol relies on two atoms, modelled by Unruh-DeWitt detectors, that are initially u…