Chui‐Ping Yang

Circuit QED: Cross-Kerr-effect induced by a superconducting qutrit without classical pulses

2016 · arXiv (Cornell University)

The realization of cross-Kerr nonlinearity is an important task for many applications in quantum information processing. In this work, we propose a method for realizing cross-Kerr nonlinearity interaction between two superconducting coplanar waveguide resonators coupled …

One-step implementation of a multi-target-qubit controlled phase gate with cat-state qubits in circuit QED

2019 · arXiv (Cornell University)

We propose a single-step implementation of a muti-target-qubit controlled phase gate with one cat-state qubit (\textit{cqubit}) simultaneously controlling $n-1$ target \textit{cqubits}. The two logic states of a \textit{cqubit} are represented by two orthogonal cat states …

Generation of quantum entangled states of multiple groups of qubits distributed in multiple cavities

2020 · Physical Review A

Provided that cavities are initially in a Greenberger-Horne-Zeilinger (GHZ) entangled state, we show that GHZ states of $N$-group qubits distributed in $N$ cavities can be created via a three-step operation. The GHZ states of the …

Experimental investigation of wave-particle duality relations in asymmetric beam interference

2022 · npj Quantum Information

Abstract Wave-particle duality relations are fundamental for quantum physics. Previous experimental studies of duality relations mainly focus on the quadratic relation D 2 + V 2 ≤ 1, based on symmetric beam interference, while a …