Search Results for author: Jiangfeng Du

Found 5 papers, 1 papers with code

Phase-controlled pathway interferences and switchable fast-slow light in a cavity-magnon polariton system

no code implementations24 Feb 2021 Jie Zhao, Longhao Wu, Tiefu Li, Yu-xi Liu, Franco Nori, Yulong Liu, Jiangfeng Du

We study the phase controlled transmission properties in a compound system consisting of a 3D copper cavity and an yttrium iron garnet (YIG) sphere.

Quantum Physics Applied Physics Optics

Beating the Standard Quantum Limit under Ambient Conditions with Solid-State Spins

no code implementations28 Jan 2021 Tianyu Xie, Zhiyuan Zhao, Xi Kong, Wenchao Ma, Mengqi Wang, Xiangyu Ye, Pei Yu, Zhiping Yang, Shaoyi Xu, Pengfei Wang, Ya Wang, Fazhan Shi, Jiangfeng Du

However, it has not been realized in solid-state spin systems at ambient conditions, owing to its intrinsic complexity for the preparation and survival of pure and entangled quantum states.

Quantum Physics

High-fidelity adiabatic quantum computation using the intrinsic Hamiltonian of a spin system: Application to the experimental factorization of 291311

no code implementations25 Jun 2017 Zhaokai Li, Nikesh S. Dattani, Xi Chen, Xiaomei Liu, Hengyan Wang, Richard Tanburn, Hongwei Chen, Xinhua Peng, Jiangfeng Du

In previous implementations of adiabatic quantum algorithms using spin systems, the average Hamiltonian method with Trotter's formula was conventionally adopted to generate an effective instantaneous Hamiltonian that simulates an adiabatic passage.

Quantum Physics

Room-temperature implementation of the Deutsch-Jozsa algorithm with a single electronic spin in diamond

no code implementations12 Feb 2010 Fazhan Shi, Xing Rong, Nanyang Xu, Ya Wang, Jie Wu, Bo Chong, Xinhua Peng, Juliane Kniepert, Rolf-Simon Schoenfeld, Wolfgang Harneit, Mang Feng, Jiangfeng Du

The nitrogen-vacancy defect center (NV center) is a promising candidate for quantum information processing due to the possibility of coherent manipulation of individual spins in the absence of the cryogenic requirement.

Quantum Physics

Implementation of a quantum algorithm to solve Bernstein-Vazirani's parity problem without entanglement on an ensemble quantum computer

1 code implementation21 Dec 2000 Jiangfeng Du, Mingjun Shi, Jihui Wu, Xianyi Zhou, Yangmei Fan, BangJiao Ye, Rongdian Han

Bernstein and Varizani have given the first quantum algorithm to solve parity problem in which a strong violation of the classical imformation theoritic bound comes about.

Quantum Physics

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