281 citations · 1.8k across the 46 of their papers we have counts for
6 papers · 1 filter
Pseudospin Paramagnons and the Superconducting Dome in Magic Angle Twisted Bilayer Graphene
Chunli Huang, Nemin Wei, Wei Qin +1
We present a theory of superconductivity in twisted bilayer graphene in which attraction is generated between electrons on the same honeycomb sublattice when the system is close to…
Significant enhancement in refrigeration and entanglement in auxiliary-cavity-assisted optomechanical systems
Deng-Gao Lai, Wei Qin, Bang-Pin Hou +2
We propose how to achieve significantly enhanced quantum refrigeration and entanglement by coupling a pumped auxiliary cavity to an optomechanical cavity. We obtain both analytical…
Fault-tolerant multiqubit geometric entangling gates using photonic cat-state qubits
Ye-Hong Chen, Roberto Stassi, Wei Qin +2
We propose a theoretical protocol to implement multiqubit geometric gates (i.e., the Mølmer-Sørensen gate) using photonic cat-state qubits. These cat-state qubits stored in high-$Q…
In-plane critical magnetic fields in magic-angle twisted trilayer graphene
Wei Qin, Allan H. MacDonald
It has recently been shown that superconductivity in magic-angle twisted trilayer graphene survives to in-plane magnetic fields that are well in excess of the Pauli limit, and much…
Critical magnetic fields and electron-pairing in magic-angle twisted bilayer graphene
Wei Qin, Bo Zou, Allan H. MacDonald
The velocities of the quasiparticles that form Cooper pairs in a superconductor are revealed by the upper critical magnetic field. Here we use this property to assess superconducti…
Generating Large Cats with Nine Lives: Long-Lived Macroscopically Distinct Superposition States in Atomic Ensembles
Wei Qin, Adam Miranowicz, Hui Jing +1
We propose to create and stabilize long-lived macroscopic quantum superposition states in atomic ensembles. We show that using a fully quantum parametric amplifier can cause the si…