34 citations · 340 across the 22 of their papers we have counts for
22 papers
Simple realization of a hybrid controlled-controlled-Z gate with photonic control qubits encoded via eigenstates of the photon-number parity operator
Qi-Ping Su, Liang Bin, Yu Zhang +1
We propose a simple method to realize a hybrid controlled-controlled-Z (CCZ) gate with two photonic qubits simultaneously controlling a superconducting (SC) target qubit, by employ…
One-step implementation of a multi-target-qubit controlled-phase gate with photonic qubits encoded via eigenstates of the photon-number parity operator
Qi-Ping Su, Liang Bin, Yu Zhang +1
In recent years, quantum state engineering and quantum information processing using microwave fields and photons have received increasing attention. In addition, multiqubit gates p…
Extension of Noether's theorem in PT-symmetric systems and its experimental demonstration in an optical setup
Q. C. Wu, J. L. Zhao, Y. L. Fang +4
Noether's theorem is one of the fundamental laws in physics, relating the symmetry of a physical system to its constant of motion and conservation law. On the other hand, there exi…
Quantum state discrimination in a PT-symmetric system
Dong-Xu Chen, Yu Zhang, Jun-Long Zhao +4
Nonorthogonal quantum state discrimination (QSD) plays an important role in quantum information and quantum communication. In addition, compared to Hermitian quantum systems, parit…
Experimental investigation of wave-particle duality relations in asymmetric beam interference
Dong-Xu Chen, Yu Zhang, Jun-Long Zhao +4
Wave-particle duality relations are fundamental for quantum physics. Previous experimental studies of duality relations mainly focus on the quadratic relation , based…
Construction of a qudit using Schrodinger cat states and generation of hybrid entanglement between a discrete-variable qudit and a continuous-variable qudit
Qi-ping Su, Tong Liu, Yu Zhang +1
We show that a continuous-variable (CV) qudit can be constructed using quasiorthogonal cat states of a bosonic mode, when the phase encoded in each cat state is chosen appropriatel…
Single-step implementation of a hybrid controlled-NOT gate with one superconducting qubit simultaneously controlling multiple target cat-state qubits
Qi-Ping Su, Yu Zhang, Chui-Ping Yang
Hybrid quantum gates have recently drawn considerable attention. They play significant roles in connecting quantum information processors with qubits of different encoding and have…
Hybrid controlled-SUM gate with one superconducting qutrit and one cat-state qutrit and application in hybrid entangled state preparation
Qi-Ping Su, Yu Zhang, Liang Bin +1
Compared with a qubit, a qudit (i.e., -level or -state quantum system) provides a larger Hilbert space to store and process information. On the other hand, qudit-based hybrid…
Entanglement Dynamics in Anti--Symmetric Systems
Yu-Liang Fang, Jun-Long Zhao, Dong-Xu Chen +5
In the past years, many efforts have been made to study various noteworthy phenomena in both parity-time () and anti-parity-time () symmetric systems.…
Efficient scheme for realizing a multiplex-controlled phase gate with photonic qubits in circuit quantum electrodynamics
Qi-Ping Su, Yu Zhang, Liang Bin +1
We propose an efficient scheme to implement a multiplex-controlled phase gate with multiple photonic qubits simultaneously controlling one target photonic qubit based on circuit qu…
Experimental demonstration of coherence flow in - and anti--symmetric systems
Yu-Liang Fang, Jun-Long Zhao, Yu Zhang +5
Non-Hermitian parity-time () and anti-parity-time ()-symmetric systems exhibit novel quantum properties and have attracted increasing interest. Althoug…
Generation of quantum entangled states of multiple groups of qubits distributed in multiple cavities
Tong Liu, Qi-Ping Su, Yu Zhang +2
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…
Transferring entangled states of photonic cat-state qubits in circuit QED
Tong Liu, Zhen-Fei Zheng, Yu Zhang +2
We propose a method for transferring quantum entangled states of two photonic cat-state qubits (cqubits) from two microwave cavities to the other two microwave cavities. This propo…
One-step implementation of a multi-target-qubit controlled phase gate with cat-state qubits in circuit QED
You-Ji Fan, Zhen-Fei Zheng, Yu Zhang +2
We propose a single-step implementation of a muti-target-qubit controlled phase gate with one cat-state qubit (\textit{cqubit}) simultaneously controlling target \textit{cqub…
Circuit QED: single-step realization of a multiqubit controlled phase gate with one microwave photonic qubit simultaneously controlling microwave photonic qubits
Biaoliang Ye, Zhen-Fei Zheng, Yu Zhang +1
We present a novel method to realize a multi-target-qubit controlled phase gate with one microwave photonic qubit simultaneously controlling target microwave photonic qubits.…
Universal quantum gate with hybrid qubits in circuit quantum electrodynamics
Chui-Ping Yang, Zhen-Fei Zheng, Yu Zhang
Hybrid qubits have recently drawn intensive attention in quantum computing. We here propose a method to implement a universal controlled-phase gate of two hybrid qubits via two thr…
A framework for quantum homomorphic encryption with experimental demonstration
Yu Zhang, Li Yu, Qi-Ping Su +7
Quantum homomorphic encryption (QHE) is an encryption method that allows quantum computation to be performed on one party's private data with the program provided by another party,…
Experimental demonstration of quantum walks with initial superposition states
Qi-Ping Su, Yu Zhang, Li Yu +9
The preparation of initial superposition states of discrete-time quantum walks (DTQWs) are necessary for the study and applications of DTQWs. In linear optics, it is easy to prepar…
Universal controlled-phase gate with cat-state qubits in circuit QED
Yu Zhang, Xiong Zhao, Li Yu +2
Cat-state qubits (qubits encoded with cat states) have recently drawn intensive attention due to their enhanced life times with quantum error correction. We here propose a method t…
Experimental simulation of quantum temporal steering beyond rotating-wave approximation
Shao-Jie Xiong, Yu Zhang, Zhe Sun +6
Characterizing the dynamics of open systems usually starts with a perturbative theory and involves various approximations, such as the Born, Markov and rotating-wave approximation…
Generating double NOON states of photons in circuit QED
Qi-Ping Su, Hui-Hao Zhu, Li Yu +4
To generate a NOON state with a large photon number , the number of operational steps could be large and the fidelity will decrease rapidly with . Here we propose a method to…
Transferring arbitrary d-dimensional quantum states of a superconducting qudit in circuit QED
Tong Liu, Qi-Ping Su, Jin-Hu Yang +4
A qudit (-level quantum systems) has a large Hilbert space and thus can be used to achieve many quantum information and communication tasks. Here, we propose a method to transfe…