256 citations · 780 across the 30 of their papers we have counts for
3 papers · 1 filter
Single-qubit gates in two steps with rotation axes in a single plane
Yun-Pil Shim, Jianjia Fei, Sangchul Oh +2
Any single-qubit unitary operation or quantum gate can be considered a rotation. Typical experimental implementations of single-qubit gates involve two or three fixed rotation axes…
Probing Quantum Phase Transitions on a Spin Chain with a Double Quantum Dot
Yun-Pil Shim, Sangchul Oh, Jianjia Fei +2
Quantum phase transitions (QPTs) in qubit systems are known to produce singularities in the entanglement, which could in turn be used to probe the QPT. Current proposals to measure…
Controllable anisotropic exchange coupling between spin qubits in quantum dots
Yun-Pil Shim, Sangchul Oh, Xuedong Hu +1
The exchange coupling between quantum dot spin qubits is isotropic, which restricts the types of quantum gates that can be formed. Here, we propose a method for controlling anisotr…