37 citations · 65 across the 7 of their papers we have counts for
7 papers
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…
Optomechanical quantum entanglement mediated by acoustic phonon fields
Qidong Xu, M. P. Blencowe
We present exact solutions for the quantum time evolution of two spatially separated, local inductor-capacitor (LC) oscillators that are coupled optomechanically to a long elastic…
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…
Cavity mode dephasing via the optomechanical interaction with an acoustic environment
Qidong Xu, M. P. Blencowe
We consider an optomechanical system comprising a single cavity mode and a dense spectrum of acoustic modes and solve for the quantum dynamics of initial cavity mode Fock (i.e., ph…
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…
Zero-dimensional models for gravitational and scalar QED decoherence
Qidong Xu, M. P. Blencowe
We investigate the dynamics of two quantum mechanical oscillator system-bath toy models obtained by truncating to zero spatial dimensions linearized gravity coupled to a massive sc…
Phonon induced two-mode squeezing of nitrogen-vacancy center ensembles
Qidong Xu, W. L. Yang, Zhang-qi Yin
We propose a potentially practical scheme for realization of two-mode squeezed state with respect to two distant nitrogen-vacancy center ensembles coupled to two interconnected mec…