Fu‐Guo Deng
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Entanglement Purification for Logic-Qubit of Photon System Based on Parity Check Measurement Gate Open
It has been found that logic-qubit entanglement has great potential for applications in quantum communication and quantum networks in recent years. However, along with the effects of noise and decoherence, the fidelity of the communication…
View article: Global Correlation and Local Information Flows in Controllable Non-Markovian Open Quantum Dynamics
Global Correlation and Local Information Flows in Controllable Non-Markovian Open Quantum Dynamics Open
In a fully-controllable experiment platform for studying non-Markovian open quantum dynamics, we show that the non-Markovianity could be investigated from the global and local aspects. By mixing random unitary dynamics, we demonstrate non-…
View article: Quantum metrology with one auxiliary particle in a correlated bath and its quantum simulation
Quantum metrology with one auxiliary particle in a correlated bath and its quantum simulation Open
In realistic metrology, entangled probes are more sensitive to noise,\nespecially for a correlated environment. The precision of parameter estimation\nwith entangled probes is even lower than that of the unentangled ones in a\ncorrelated e…
Controllable Non‐Reciprocal Transmission of Single Photon in Möbius Structure Open
A controllable non‐reciprocal transmission model is proposed. The model contains a Möbius ring, which is connected with two 1D semi‐infinite chains, with a two‐level atom located inside one of the cavities of the Möbius ring. The Green fun…
Efficient quantum simulation of open quantum dynamics at various Hamiltonians and spectral densities Open
Recently, we have theoretically proposed and experimentally demonstrated an\nexact and efficient quantum simulation of photosynthetic light harvesting in\nnuclear magnetic resonance (NMR), cf. B. X. Wang, \\textit{et al.} npj Quantum\nInf.…
Controllable non-reciprocal transmission of single photon in Mobius\n structure Open
We propose a controllable non-reciprocal transmission model. The model\nconsists of a Mobius ring, which is connected with two one-dimensional\nsemi-infinite chains, and with a two-level atom located inside one of the\ncavities of the Mobi…
Quantum simulation of clustered photosynthetic light harvesting in a superconducting quantum circuit Open
We propose a scheme to simulate the exciton energy transfer (EET) of photosynthetic complexes in a quantum superconducting circuit system. Our system is composed of two pairs of superconducting charge qubits coupled to two separated high-Q…
Imperfect-interaction-free entanglement purification on stationary systems for solid quantum repeaters Open
Solid quantum repeater is a core part in a large-scale quantum network. Entanglement purification, the key technique in a quantum repeater, is used to distill high-quality nonlocal entanglement from an ensemble in a mixed entangled state a…
Efficient quantum key distribution against collective noise using polarization and transverse spatial mode of photons Open
Channel noise is the main issue which reduces the efficiency of quantum communication. Here we present an efficient scheme for quantum key distribution against collective-rotation channel noise using polarization and transverse spatial mod…
Entangling two high-Q microwave resonators assisted by a resonator terminated with SQUIDs Open
We propose a superconducting circuit for quantum information processing (QIP) on high-quality (high-Q) superconducting resonators (SRs). In the circuit, two high-Q SRs are coupled to a high-frequency SR (acts as a quantum bus) assisted by …
Microwave transmission through an artificial atomic chain coupled to a superconducting photonic crystal Open
Emitters strongly coupled to a photonic crystal provide a powerful platform\nfor realizing novel quantum light-matter interactions. Here we study the\noptical properties of a three-level artificial atomic chain coupled to a\none-dimensiona…
Complete analysis of hyperentangled Bell states assisted with auxiliary hyperentanglement Open
We present a simple protocol for complete analysis of 16 hyperentangled Bell states of two-photon system in the polarization and the first longitudinal momentum degrees of freedom (DOFs). This complete analysis protocol is accomplished wit…
Repeatable classical one-time-pad crypto-system with quantum mechanics Open
Classical one-time-pad key can only be used once. We show in this Letter that with quantum mechanical information media classical one-time-pad key can be repeatedly used. We propose a specific realization using single photons. The reason w…
Universal Single‐Qubit Nonadiabatic Holonomic Quantum Gates on an Optomechanical System Open
The nonadiabatic holonomic quantum computation has attracted much attention in recent years because of its fastness and robustness. Here, the first scheme to realize theoretically universal single‐qubit gates on an optomechanical system wo…
Self-error-corrected hyperparallel photonic quantum computation working with both the polarization and the spatial-mode degrees of freedom Open
Usually, the hyperparallel quantum computation can speed up quantum computing, reduce the quantum resource consumed largely, resist to noise, and simplify the storage of quantum information. Here, we present the first scheme for the self-e…
Polaron in a non-Abelian Aubry-André-Harper model with -wave superfluidity Open
We theoretically investigate the behavior of a mobile impurity immersed in a one-dimensional quasiperiodic Fermi system with topological p-wave superfluidity. This polaron problem is solved by using a standard variational approach, the so-…
Photon transport mediated by an atomic chain trapped along a photonic crystal waveguide Open
We theoretically investigate the transport properties of a weak coherent input field scattered by an ensemble of Λ-type atoms coupled to a one-dimensional photonic crystal waveguide. In our model, the atoms are randomly located in the latt…
Dark state polarizing a nuclear spin in the vicinity of a nitrogen-vacancy center Open
The nuclear spin in the vicinity of a nitrogen-vacancy (NV) center possesses\nof long coherence time and convenient manipulation assisted by the strong\nhyperfine interaction with the NV center. It is suggested for the subsequent\nquantum …
Entanglement Purification of Nonlocal Quantum‐Dot‐Confined Electrons Assisted by Double‐Sided Optical Microcavities Open
A nondestructive parity‐check detector (PCD) scheme for two single‐electron quantum dots embedded in double‐sided optical microcavities is presented here. Using a polarization‐entangled photon pair, the PCD works in a parallel style and is…
Hyperparallel photonic quantum computation with a self-error-corrected pattern Open
We investigate the hyperparallel photonic quantum computation working on a pair of photons in both the polarization and spatial-mode DOFs simultaneously and construct the universal hyperparallel photonic quantum CNOT gate on two photons, r…
Quantum error rejection and fault tolerant quantum communication Open
Quantum communication utilizes the quantum state as information carrier. The transmission of quantum states is therefore a precondition for various quantum communication protocols. Photons play a central role in quantum communication since…
Polarization entanglement purification of nonlocal microwave photons based on the cross-Kerr effect in circuit QED Open
Microwave photons have become very important qubits in quantum communication as the first quantum satellite has been launched successfully. Therefore, it is a necessary and meaningful task for ensuring the high security and efficiency of m…
Photon scattering by an atomic ensemble coupled to a one-dimensional nanophotonic waveguide Open
We theoretically investigate the quantum scattering of a single-photon pulse\ninteracting with an ensemble of $\\Lambda$-type three-level atoms coupled to a\none-dimensional waveguide. With an effective non-Hermitian Hamiltonian, we\nstudy…
Robust hyperparallel photonic quantum entangling gate with cavity QED Open
Under the balance condition of the diamond nitrogen vacancy center embedded in an optical cavity as a result of cavity quantum electrodynamics, we present a robust hyperparallel photonic controlled-phase-flip gate for a two-photon system i…
Robust state preparation in quantum simulations of Dirac dynamics Open
A non-relativistic system such as an ultracold trapped ion may perform a quantum simulation of a Dirac equation dynamics under specific conditions. The resulting Hamiltonian and dynamics are highly controllable, but the coupling between mo…
View article: Effect of nanosilica content on the corrosion inhibition of composite coatings of a filled epoxy resin grafted with a hydrophobic fluoroalkylsilane: a dual critical concentrations interpretation
Effect of nanosilica content on the corrosion inhibition of composite coatings of a filled epoxy resin grafted with a hydrophobic fluoroalkylsilane: a dual critical concentrations interpretation Open
Hydrophobic epoxy-resin composite coatings uniquely display double corrosion-inhibition extrema at nanosilica dual critical concentrations of 0–0.5 and ∼3 wt%.
Error-rejecting quantum computing with solid-state spins assisted by low-optical microcavities Open
We present an efficient proposal for error-rejecting quantum computing with\nquantum dots (QD) embedded in single-sided optical microcavities based on the\ninterface between the circularly polarized photon and QDs. An almost unity\nfidelit…