Chaohan Cui
YOU?
Author Swipe
View article: Hardware-Efficient Large-Scale Universal Linear Transformations for Optical Modes in the Synthetic Time Dimension
Hardware-Efficient Large-Scale Universal Linear Transformations for Optical Modes in the Synthetic Time Dimension Open
Recent progress in photonic information processing has generated strong interest in scalable and dynamically reconfigurable photonic circuitry. Conventional approaches based on spatial interferometer meshes face a fundamental scaling bottl…
View article: Coherent State Assisted Entanglement Generation Between Quantum Memories
Coherent State Assisted Entanglement Generation Between Quantum Memories Open
Generating entanglement deterministically at a capacity-approaching rate is critical for next-generation quantum networks. We propose weak-coherent-state-assisted protocols that can generate entanglement near-deterministically between refl…
View article: Superadditive communication with the green machine as a practical demonstration of nonlocality without entanglement
Superadditive communication with the green machine as a practical demonstration of nonlocality without entanglement Open
Achieving the ultimate Holevo limit of optical communication capacity requires a joint-detection receiver that makes a collective quantum measurement over multiple modulated symbols. Such superadditivity-a higher communication rate than is…
View article: Scalable photonic-phonoinc integrated circuitry for reconfigurable signal processing
Scalable photonic-phonoinc integrated circuitry for reconfigurable signal processing Open
The interaction between photons and phonons plays a crucial role in broad areas ranging from optical sources and modulators to quantum transduction and metrology. The performance can be further improved using integrated photonic-phononic d…
View article: Low-dimensional solid-state single-photon emitters
Low-dimensional solid-state single-photon emitters Open
Solid-state single-photon emitters (SPEs) are attracting significant attention as fundamental components in quantum computing, communication, and sensing. Low-dimensional materials-based SPEs (LD-SPEs) have drawn particular interest due to…
View article: Low-Dimensional Solid-State Single-Photon Emitters
Low-Dimensional Solid-State Single-Photon Emitters Open
Solid-state single-photon emitters (SPEs) are attracting significant attention as fundamental components in quantum computing, communication, and sensing. Low-dimensional materials-based SPEs (LD-SPEs) have drawn particular interest due to…
View article: Towards quantum-enhanced long-baseline optical/near-IR interferometry
Towards quantum-enhanced long-baseline optical/near-IR interferometry Open
Microarcsecond resolutions afforded by an optical-NIR array with kilometer-baselines would enable breakthrough science. However significant technology barriers exist in transporting weakly coherent photon states over these distances: prima…
View article: Superadditive Communications with the Green Machine: Online Data Repository
Superadditive Communications with the Green Machine: Online Data Repository Open
This online repository contains selected datasets and scripts for data processes in the paper "Superadditive Communications with the Green Machine: A Practical Demonstration of Nonlocality without Entanglement". arXiv.2310.05889
View article: Superadditive Communications with the Green Machine: Online Data Repository
Superadditive Communications with the Green Machine: Online Data Repository Open
This online repository contains selected datasets and scripts for data processes in the paper "Superadditive Communications with the Green Machine: A Practical Demonstration of Nonlocality without Entanglement". arXiv.2310.05889
View article: Distinguishing under- and over-coupled resonances without prior knowledge
Distinguishing under- and over-coupled resonances without prior knowledge Open
We show that it is unreliable to determine the coupling condition of optical resonances by analyzing the extinction ratio change with wavelengths. We propose and demonstrate the unambiguous discrimination between under- and over-coupled re…
View article: Integrated-waveguide-based acousto-optic modulation with complete optical conversion
Integrated-waveguide-based acousto-optic modulation with complete optical conversion Open
Acousto-optic modulation in piezoelectric materials offers the efficient method to bridge electrical and optical signals. It is widely used to control optical frequencies and intensities in modern optical systems including Q -switch lasers…
View article: Adapted poling to break the nonlinear efficiency limit in nanophotonic lithium niobate waveguides
Adapted poling to break the nonlinear efficiency limit in nanophotonic lithium niobate waveguides Open
Nonlinear frequency mixing is of critical importance in extending the wavelength range of optical sources. It is also indispensable for emerging applications such as quantum information and photonic signal processing. Conventional lithium …
View article: Reconfigurable Quantum Internet Service Provider
Reconfigurable Quantum Internet Service Provider Open
With the recent developments in engineering quantum systems, the realization of scalable local-area quantum networks has become viable. However, the design and implementation of a quantum network is a holistic task that is way beyond the s…
View article: Data & Code: Quantum receiver enhanced by adaptive learning
Data & Code: Quantum receiver enhanced by adaptive learning Open
This folder contains original data, data processing code, and demo code for the paper entitled "Quantum receiver enhanced by adaptive learning" published in Light: Science & Applications, DOI: 10.1038/s41377-022-01039-5. Please contact cha…
View article: Control spontaneous symmetry breaking of photonic chirality with reconfigurable anomalous nonlinearity
Control spontaneous symmetry breaking of photonic chirality with reconfigurable anomalous nonlinearity Open
Spontaneous symmetry breaking in nonlinear systems provides a unified method to understand vastly different phenomena, ranging from Higgs mechanism [1] and superconductivity [2] to ecological stability [3] and genome generation [4]. Sponta…
View article: Quantum Receiver Enhanced by Adaptive Learning
Quantum Receiver Enhanced by Adaptive Learning Open
Quantum receivers aim to effectively navigate the vast quantum-state space to endow quantum information processing capabilities unmatched by classical receivers. To date, only a handful of quantum receivers have been constructed to tackle …
View article: In situ control of integrated Kerr nonlinearity
In situ control of integrated Kerr nonlinearity Open
Kerr nonlinearity in nanophotonic cavities provides a versatile platform to explore fundamental physical sciences and develop novel photonic technologies. This is driven by the precise dispersion control and significant field enhancement w…
View article: On-chip parallel processing of quantum frequency combs for high-dimensional hyper-entanglement generation
On-chip parallel processing of quantum frequency combs for high-dimensional hyper-entanglement generation Open
High-dimensional encoding and hyper-entanglement are unique features that distinguish optical photons from other quantum information carriers, leading to improved system efficiency and novel quantum functions. However, the disparate requir…
View article: Simultaneous type-I and type-II phase matching for second-order nonlinearity in integrated lithium niobate waveguide
Simultaneous type-I and type-II phase matching for second-order nonlinearity in integrated lithium niobate waveguide Open
Second-order optical nonlinearity is widely used for both classical and quantum photonic applications. Due to material dispersion and phase matching requirements, the polarization of optical fields is pre-defined during the fabrication. On…
View article: Deterministic microwave-optical transduction based on quantum teleportation
Deterministic microwave-optical transduction based on quantum teleportation Open
The coherent transduction between microwave and optical frequencies is critical to interconnect superconducting quantum processors over long distances. However, it is challenging to establish such a quantum interface with high efficiency a…
View article: High-Dimensional Frequency-Encoded Quantum Information Processing with Passive Photonics and Time-Resolving Detection
High-Dimensional Frequency-Encoded Quantum Information Processing with Passive Photonics and Time-Resolving Detection Open
In this Letter, we propose a new approach to process high-dimensional quantum information encoded in a photon frequency domain. In contrast to previous approaches based on nonlinear optical processes, no active control of photon energy is …
View article: Wave-Function Engineering for Spectrally Uncorrelated Biphotons in the Telecommunication Band Based on a Machine-Learning Framework
Wave-Function Engineering for Spectrally Uncorrelated Biphotons in the Telecommunication Band Based on a Machine-Learning Framework Open
Indistinguishable single photons are key ingredient for a plethora of quantum\ninformation processing applications ranging from quantum communications to\nphotonic quantum computing. A mainstream platform to produce indistinguishable\nsing…
View article: Quantum teleportation of photonic qudits using linear optics
Quantum teleportation of photonic qudits using linear optics Open
One of the challenges of photon-based quantum teleportation is that both a source of entangled photons and an entangled basis measurement are required. For qubits, one can perform a probabilistic entangled basis measurement using linear op…
View article: Improving the performance of twin-field quantum key distribution
Improving the performance of twin-field quantum key distribution Open
Among the various versions of the twin-field quantum key distribution\n(TF-QKD) protocol [M.Lucamarini, Z. Yuan, J. Dynes, and A. Shields, Nature\n(London) 557, 400 (2018)] that can overcome the rate-distance limit, the TF-QKD\nwithout pha…
View article: Parameter optimization and real-time calibration of a measurement-device-independent quantum key distribution network based on a back propagation artificial neural network
Parameter optimization and real-time calibration of a measurement-device-independent quantum key distribution network based on a back propagation artificial neural network Open
The parameters choosing (such as probabilities of choosing X-basis or\nZ-basis, intensity of signal state and decoy state, etc.) and system\ncalibrating will be more challenging when the number of users of a\nmeasurement-device-independent…
View article: Twin-Field Quantum Key Distribution with large random intensity fluctuation
Twin-Field Quantum Key Distribution with large random intensity fluctuation Open
Twin-Field Quantum Key Distribution(TF-QKD) protocol and its variants, such as Phase-Matching QKD(PM-QKD), sending or not QKD(SNS-QKD) and No Phase Post-Selection TF-QKD(NPP-TFQKD), are very promising for long-distance applications. Howeve…