Quantum systems · networking · fault tolerance

Xu XuPh.D. Candidate in Computer Engineering
Stony Brook University

I develop system-level methods for reliable and scalable quantum computation across interconnected QPUs, connecting fault tolerance, quantum networking, compilation, and resource optimization.

Portrait of Xu Xu

Research

Reliable quantum computing, distributed by design.

My research centers on distributed and fault-tolerant quantum computing. I study how logical operations, error correction, entanglement supply, communication, and constrained hardware resources interact when quantum workloads span multiple processors.

01

Distributed compilation

Qubit mapping, circuit transformation, Telegate and Teledata scheduling, and dependency-aware execution across capacity-constrained QPUs.

02

Fault-tolerant architectures

Surface-code-based computation, logical operations, magic-state factories, buffers, and QEC-aware allocation and scheduling.

03

Entanglement & reliability

End-to-end models spanning generation, purification, encoding, QEC, storage aging, and remote logical execution.

04

Quantum networking

Photonic interconnects, scalable switching and routing, communication-aware resource management, and performance modeling.

Selected work

Publications

  1. Resource Allocation for Distributed Fault-Tolerant Quantum Computing with Surface Codes

    ICDCS 2026 X. Xu et al.
  2. Labubu: Layer-Buffered Bundled Optimization for Efficient Remote Gate Scheduling in Distributed Quantum Computing

    IEEE/ACM ToN 2026 X. Xu et al.
  3. Remote Gate Scheduling in Distributed Quantum Computing

    ICDCS 2025 X. Xu et al.
  4. Joint Optimization of Circuit Transformation and Qubit Mapping for Distributed Quantum Computing

    INFOCOM 2026 X. Zhang, X. Xu, et al.
  5. A Nonblocking Multistage Switching Network for Distributed Quantum Computing

    IEEE/ACM ToN 2025 Y. Liu, Y. Mao, X. Xu, et al.
  6. Performance Analysis of Interconnection Networks for Distributed Quantum Computing

    GLOBECOM 2024 Y. Mao, Y. Liu, X. Xu, et al.

Background

Research & teaching

Graduate Research Assistant

High Performance Computing and Networking Research Laboratory · Stony Brook University
Aug. 2023—Present

Advisor: Prof. Yuanyuan Yang. Research in distributed quantum systems, fault-tolerant architectures, compilation, scheduling, resource allocation, and quantum interconnects.

Teaching Assistant

Stony Brook University
2023—Present

ESE 333 Real-Time Operating Systems, ESE 123 Introduction to Electrical and Computer Engineering, and ESE 272 Electronics.

Researcher — Computer Vision & Medical Imaging

Nanjing University
Oct. 2022—June 2023

Developed and evaluated CNN-, ResNet-, and Transformer-based breast-ultrasound classification pipelines using Python and PyTorch.

Methods

Technical toolkit

PythonQiskitQiskit AerPennyLaneGurobiNumPySciPyPyTorchMonte Carlo simulationInteger programmingQuantum error correctionSurface codesStabilizer methodsGitLaTeX

Contact

Let’s connect.

I am interested in research collaborations and opportunities in distributed quantum computing, fault-tolerant systems, quantum networking, compilation, and architecture.