Jiajian Zhang

ORCID: 0009-0004-9484-6740
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About
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Research Areas
  • Quantum and electron transport phenomena
  • Quantum Information and Cryptography
  • Quantum Computing Algorithms and Architecture
  • Cold Atom Physics and Bose-Einstein Condensates
  • Physics of Superconductivity and Magnetism
  • Quantum Mechanics and Applications
  • Quantum many-body systems
  • Advanced Thermodynamics and Statistical Mechanics
  • Advanced Frequency and Time Standards
  • Membrane Separation Technologies
  • Superconducting and THz Device Technology
  • Nanopore and Nanochannel Transport Studies
  • Diamond and Carbon-based Materials Research
  • Topological Materials and Phenomena
  • Quantum optics and atomic interactions
  • Concrete Corrosion and Durability
  • Advanced Data and IoT Technologies
  • Fullerene Chemistry and Applications
  • Quantum chaos and dynamical systems
  • E-commerce and Technology Innovations
  • Membrane-based Ion Separation Techniques
  • Structural Integrity and Reliability Analysis
  • Solar-Powered Water Purification Methods
  • Energetic Materials and Combustion
  • Radio Frequency Integrated Circuit Design

Southern University of Science and Technology
2022-2025

Beijing Academy of Quantum Information Sciences
2024-2025

Quantum (Australia)
2024

Xi'an Jiaotong University
2024

Nanjing Forestry University
2022-2024

Nanjing University of Posts and Telecommunications
2018

Abstract Implementing quantum algorithms on realistic devices requires translating high-level global operations into sequences of hardware-native logic gates, a process known as compiling. Physical limitations, such constraints in connectivity and gate alphabets, often result unacceptable implementation costs. To enable successful near-term applications, it is crucial to optimize compilation by exploiting the capabilities existing hardware. Here we implement resource-efficient construction...

10.1038/s41567-022-01813-7 article EN cc-by Nature Physics 2022-11-14

<title>Abstract</title> Quantum metrology has emerged as a powerful tool for timekeeping, field sensing, and precision measurements within fundamental physics. With the advent of distributed quantum metrology, its capabilities have been extended to probing spatially parameters across networked systems. However, generating necessary non-local entanglement remains significant challenge, inherent incompatibility in multi-parameter estimation affects ultimate performance. Here we use...

10.21203/rs.3.rs-5698808/v1 preprint EN cc-by Research Square (Research Square) 2025-02-14

Fock-state lattices, composed of photon number states with infinite Hilbert space, have emerged as a promising platform for simulating high-dimensional physics due to their potential extend into arbitrarily high dimensions. Here, we demonstrate the construction multidimensional lattices using superconducting quantum circuits. By controlling artificial gauge fields within internal structures, investigate flux-induced extreme localization dynamics, such Aharonov-Bohm caging, extending from 2D...

10.1103/physrevlett.134.070601 article EN Physical Review Letters 2025-02-19

Superconducting qubits are a promising platform for building fault-tolerant quantum computers, with recent achievement showing the suppression of logical error increasing code size. However, leakage into noncomputational states, common issue in practical systems including superconducting circuits, introduces correlated errors that undermine correction (QEC) scalability. Here, we propose and demonstrate reduction scheme utilizing tunable couplers, widely adopted ingredient large-scale...

10.1103/physrevlett.133.170601 article EN Physical Review Letters 2024-10-24

Anyons, exotic quasiparticles in two-dimensional space exhibiting nontrivial exchange statistics, play a crucial role universal topological quantum computing. One notable proposal to manifest the fractional statistics of anyons is toric code model; however, scaling up its size through simulation poses serious challenge because highly entangled ground state. In this Letter, we demonstrate that modular superconducting processor enables hardware-pragmatic implementation model. Through...

10.1103/physrevlett.132.020601 article EN Physical Review Letters 2024-01-08

Biomimetic nanofluidic membranes have made great progress but still suffer from various imperfections, including complex preparation and insufficient charge density, leading to low ionic conductivity, suboptimal ion selectivity, energy conversion efficiency. In this study, we present an approach fabricate a polymer-based membrane composed of sodium polystyrenesulfonate (PSS) rich in sulfonic acid groups cellulose nanofibers (CNFs) abundant carboxyl groups, using simple solvent evaporation...

10.1021/acsapm.3c02626 article EN ACS Applied Polymer Materials 2024-01-09

Abstract As superconducting quantum computing continues to advance at an unprecedented pace, there is a compelling demand for the innovation of specialized electronic instruments that act as crucial conduits between processors and host computers. Here, we introduce Microwave Measurement Control System (M 2 CS) dedicated large-scale processors. M CS features compact modular design balances overall performance, scalability flexibility. Electronic tests show key metrics comparable commercial...

10.1088/1674-1056/ad8a49 article EN Chinese Physics B 2024-10-23

ABSTRACT A method for in situ fabrication of Al@C nanocomposite energetic additives through pulsed discharge liquid cyclohexane has been proposed. The obtained nanocomposites consist large aluminum nanoparticles (over 100 nm) enveloped by fullerenes and a carbon matrix with smaller particles (under embedded within. DSC–TGA curves indicate that the heat release is higher than micron‐sized nano‐sized particles. effectively reduce ignition delay fuels. energy efficiency this much continuous arc...

10.1002/ppap.202400193 article EN Plasma Processes and Polymers 2024-10-22

As the basis for generating multi-particle quantum correlations, inter-particle interaction plays a crucial role in collective phenomena, phase transitions, and information processing. It can profoundly alter band structure of many-body systems give rise to exotic topological phenomena. Conventional pumping, which has been well demonstrated driven linear or noninteracting systems, may break down presence strong interaction. However, interplay between topology could also induce emergent...

10.48550/arxiv.2303.04582 preprint EN other-oa arXiv (Cornell University) 2023-01-01

Superconducting qubits are a promising platform for building fault-tolerant quantum computers, with recent achievement showing the suppression of logical error increasing code size. However, leakage into non-computational states, common issue in practical systems including superconducting circuits, introduces correlated errors that undermine QEC scalability. Here, we propose and demonstrate reduction scheme utilizing tunable couplers, widely adopted ingredient large-scale processors....

10.48550/arxiv.2403.16155 preprint EN arXiv (Cornell University) 2024-03-24

Superconducting transmon qubits have established as a leading candidate for quantum computation, well flexible platform exploring exotic phases and dynamics. However, physical coupling naturally yields isotropic transverse interactions between qubits, restricting their access to diverse that require spatially dependent interactions. Here, we demonstrate the simultaneous realization of both pairing (XX-YY) hopping (XX+YY) by Floquet engineering. The coherent superposition these enables...

10.48550/arxiv.2410.10208 preprint EN arXiv (Cornell University) 2024-10-14

Random fluctuations caused by environmental noise can lead to decoherence in quantum systems. Exploring and controlling such dissipative processes is both fundamentally intriguing essential for harnessing systems achieve practical advantages deeper insights. In this Letter, we first demonstrate the diffusive dynamics assisted controlled dephasing superconducting circuits, contrasting with coherent evolution. We show that enhance localization a qubit array quasiperiodic order, even regime...

10.48550/arxiv.2411.15571 preprint EN arXiv (Cornell University) 2024-11-23

As superconducting quantum computing continues to advance at an unprecedented pace, there is a compelling demand for the innovation of specialized electronic instruments that act as crucial conduits between processors and host computers. Here, we introduce Microwave Measurement Control System (M2CS) dedicated large-scale processors. M2CS features compact modular design balances overall performance, scalability, flexibility. Electronic tests show key metrics comparable commercial instruments....

10.48550/arxiv.2408.11696 preprint EN arXiv (Cornell University) 2024-08-21

Fock-state lattices (FSLs), composed of photon number states with infinite Hilbert space, have emerged as a promising platform for simulating high-dimensional physics due to their potential extend into arbitrarily high dimensions. Here, we demonstrate the construction multi-dimensional FSLs using superconducting quantum circuits. By controlling artificial gauge fields within internal structures, investigate flux-induced extreme localization dynamics, such Aharonov-Bohm caging, extending from...

10.48550/arxiv.2412.09766 preprint EN arXiv (Cornell University) 2024-12-12

Quantum metrology has emerged as a powerful tool for timekeeping, field sensing, and precision measurements within fundamental physics. With the advent of distributed quantum metrology, its capabilities have been extended to probing spatially parameters across networked systems. However, generating necessary non-local entanglement remains significant challenge, inherent incompatibility in multi-parameter estimation affects ultimate performance. Here we use superconducting network with...

10.48550/arxiv.2412.18398 preprint EN arXiv (Cornell University) 2024-12-24

Large-scale superconducting quantum computers require massive numbers of high-performance cryogenic low-noise amplifiers (cryo-LNA) for qubit readout. Here we present a C-Band monolithic microwave integrated circuit (MMIC) cryo-LNA this purpose. This is based on 150 nm GaAs pseudomorphic high electron mobility transistor (pHEMT) process and implemented with three-stage cascaded architecture, where the first stage adopts careful impedance match to optimize noise return loss. The integration...

10.48550/arxiv.2412.19477 preprint EN arXiv (Cornell University) 2024-12-27

The existing approach for monitoring the insulation state of photoelectric composite submarine cables primarily relies on detecting current cable protection layer. However, this conventional method suffers from limited accuracy due to absence parameter identification processing cable. As a result, there is need improve methodology by incorporating robust techniques enhance evaluation. In regard, real-time based thermoelectric coupling proposed monitor status By constructing an equivalent...

10.12694/scpe.v24i3.2282 article EN Scalable Computing Practice and Experience 2023-09-10

In this paper, we present a general cross-phase modulation (XPM) model based on the Volterra series transfer function (VSTF) method in hybrid coherent QPSK/OOK wavelength division multiplexed (WDM) systems. The can entirely describe XPM effects dispersion management (DM) fiber links. Normalized square deviation (NSD) is employed to test precision of our model. results show that achieve NSD less than 10−3 as launched peak power below 4 dBm/ch DM accuracy sufficient for current WDM Based...

10.1587/elex.15.20180453 article EN IEICE Electronics Express 2018-01-01

Conventional online composite submarine cable monitoring data release mostly adopts the method and principle of blockchain dynamic zoning consensus. In process, there are omissions, it takes a long time to complete task, which reduces timeliness release. Based on this, new publishing is proposed by introducing horizontal federation learning. First, cables collected preprocessed eliminate high-frequency capacitive effect cables. Secondly, manage nodes, transform status relationship ensure...

10.12694/scpe.v24i3.2275 article EN Scalable Computing Practice and Experience 2023-09-10
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