Publications (14)
Preparation of pseudo-pure states by line-selective pulses in Nuclear Magnetic Resonance
Xinhua Peng, Xiwen Zhu, Ximing Fang +4
A new method of preparing the pseudo-pure state of a spin system for quantum computation in liquid nuclear magnetic resonance (NMR) was put forward and demonstrated experimentally.…
Experimental realization of 7-qubit universal perfect controlled-NOT and controlled square-root NOT gates
Daxiu Wei, Xiaodong Yang, Jun Luo +4
The controlled-NOT gate and controlled square-root NOT gate play an important role in quantum algorithm. This article reports the experimental results of these two universal quantu…
Quantification of complementarity in multi-qubit systems
Xinhua Peng, Xiwen Zhu, Dieter Suter +3
Complementarity was originally introduced as a qualitative concept for the discussion of properties of quantum mechanical objects that are classically incompatible. More recently,…
"Spectral Implementation" for creating a labeled pseudo-pure state and the Bernstein-Vazirani's algorithm in a four-qubit nuclear magnetic resonance quantum processor
Xinhua Peng, Xiwen Zhu, Ximing Fang +3
A quantum circuit is introducted to describe the preparation of a labeled pseudo-pure state by mutiplet-component excitation scheme which has been experimentally implemented on a 4…
Realization of decoherence-free subspace using Multiple-Quantum coherences
Daxiu Wei, Jun Luo, Xianping Sun +3
This letter presents a two-dimensional nuclear magnetic resonance(NMR) approach for constructing a two-logical-qubit decoherence-free subspace (DFS) based on the fact that the thre…
An interferometric complementarity experiment in a bulk Nuclear Magnetic Resonance ensemble
Xinhua Peng, Xiwen Zhu, Ximing Fang +3
We have experimentally demonstrated the interferometric complementarity, which relates the distinguishability quantifying the amount of which-way (WW) information to the fringe…