Selected work

Representative Papers

Symmetry-initialized quantum Gibbs sampling: a non-Abelian asymmetry cascade

Jul 27, 2026

This work addresses the mixing bottleneck faced by quantum Gibbs samplers under weak symmetry breaking by proposing an acceleration framework grounded in group representation theory. By constructing an asymmetry cascade mechanism within non-Abelian groups, the study reveals that matching only the first moment is insufficient to eliminate slow-mode overlap; instead, a projection operation based on group-averaged asymmetry is required. The approach integrates representation theory, group-invariant input construction, subgroup lattice indexing, and the Davies master equation model. When applied to an SU(2) Davies sampler, it achieves a relaxation rate that scales linearly with the symmetry-breaking parameter, substantially accelerating mixing. The method also rigorously characterizes the range of asymmetric target states for which effective acceleration is guaranteed.

0 citationsRead paper

$p$-Form Gauge Dynamics and Digital Quantum Simulation -- Flux and Cosmological Constant Neutralization

Jul 12, 2026

This work formulates a ℤₖ p-form gauge field Hamiltonian theory on arbitrary-dimensional cell complexes, tailored for digital quantum simulation and designed to accurately capture higher-order topological phenomena such as cosmological constant cancellation. By parameterizing the physical Hilbert space with electric flux variables and employing boundary maps, the authors derive Gauss’s law, magnetic constraints, and boundary-dressed Wilson operators, thereby establishing a unified framework that bridges higher-form gauge theories and quantum error-correcting codes. The resulting reduced model takes the form of an Ising-type plaquette Hamiltonian amenable to efficient dynamical simulation. Numerical studies on 4×4, 6×4, and 5×5 tori reveal a critical tension-to-density ratio (≈1.89) governing flux sector dynamics, confirming the model’s validity and providing a theoretical foundation for direct implementation on digital quantum hardware.

0 citationsRead paper

Horizon-Restricted Leading Soft QED as Open Quantum System

Jul 08, 2026

This work addresses the decoherence of charged superselection sectors induced by black hole horizons by modeling the system as an open quantum system. It restricts soft QED to an exterior algebra and employs the Feynman–Vernon influence functional to capture the inequivalent histories monitored by the horizon, thereby constructing a completely positive Schur channel that governs the decoherence dynamics. The study innovatively proposes a charged qutrit interferometer based on Bargmann holonomies in the soft phase space near the horizon, yielding a measurable holonomy phase identified with the symplectic area of a soft phase-space triangle. It further establishes constraints from Gram positivity, a quantum erasure bound, and a non-Markovianity criterion. This framework enables falsifiable experimental tests of scaling laws for soft/hard processes, common-mode structures, and triangulation invariants, transcending the conventional two-path visibility paradigm.

0 citationsRead paper

Infrared Safety from ZX-Diagrams: A Categorical Proof of Soft-QED as Open Quantum System

Jun 29, 2026

This work addresses the infrared divergence problem in quantum electrodynamics by treating soft photons as an environment and hard processes as a system, establishing a non-perturbative, categorical framework for open quantum systems based on discard ZX-calculus. It provides the first diagrammatic, rigorous proof of the consistency between the Bloch–Nordsieck cancellation mechanism and the soft photon theorem. The study derives the corresponding Schur channel and an exact Lindblad generator, thereby elucidating the decoherence mechanism acting on off-diagonal elements of hard states. Furthermore, it introduces a local CPTP certification protocol that enables constant-time verification of trace preservation. By integrating categorical quantum semantics with nonequilibrium field theory, this approach offers a novel paradigm for infrared safety.

0 citationsRead paper

Egocentric Whole-Body Human Mesh Recovery with Prior-Guided Learning

May 08, 2026

Egocentric full-body mesh reconstruction from monocular head-mounted cameras struggles to recover fine-grained details of hands and face due to the lack of reliable ground-truth annotations based on parametric models like SMPL-X. This work proposes a prior-guided learning framework that generates high-fidelity pseudo ground truth through optimization-driven refinement. By integrating exocentric HMR model transfer, a diffusion-based pose prior, and a deterministic fisheye undistortion module, our approach achieves, for the first time, high-fidelity egocentric reconstruction of the entire body—including hands and face. Extensive evaluations demonstrate significant improvements over existing methods across multiple benchmarks, with the proposed pseudo ground truth outperforming conventional regression-based strategies. The code and annotated data are publicly released.

0 citationsRead paper

Recent publications

Latest Papers

Symmetry-initialized quantum Gibbs sampling: a non-Abelian asymmetry cascade

Jul 27, 2026

This work addresses the mixing bottleneck faced by quantum Gibbs samplers under weak symmetry breaking by proposing an acceleration framework grounded in group representation theory. By constructing an asymmetry cascade mechanism within non-Abelian groups, the study reveals that matching only the first moment is insufficient to eliminate slow-mode overlap; instead, a projection operation based on group-averaged asymmetry is required. The approach integrates representation theory, group-invariant input construction, subgroup lattice indexing, and the Davies master equation model. When applied to an SU(2) Davies sampler, it achieves a relaxation rate that scales linearly with the symmetry-breaking parameter, substantially accelerating mixing. The method also rigorously characterizes the range of asymmetric target states for which effective acceleration is guaranteed.

0 citationsRead paper

$p$-Form Gauge Dynamics and Digital Quantum Simulation -- Flux and Cosmological Constant Neutralization

Jul 12, 2026

This work formulates a ℤₖ p-form gauge field Hamiltonian theory on arbitrary-dimensional cell complexes, tailored for digital quantum simulation and designed to accurately capture higher-order topological phenomena such as cosmological constant cancellation. By parameterizing the physical Hilbert space with electric flux variables and employing boundary maps, the authors derive Gauss’s law, magnetic constraints, and boundary-dressed Wilson operators, thereby establishing a unified framework that bridges higher-form gauge theories and quantum error-correcting codes. The resulting reduced model takes the form of an Ising-type plaquette Hamiltonian amenable to efficient dynamical simulation. Numerical studies on 4×4, 6×4, and 5×5 tori reveal a critical tension-to-density ratio (≈1.89) governing flux sector dynamics, confirming the model’s validity and providing a theoretical foundation for direct implementation on digital quantum hardware.

0 citationsRead paper

Horizon-Restricted Leading Soft QED as Open Quantum System

Jul 08, 2026

This work addresses the decoherence of charged superselection sectors induced by black hole horizons by modeling the system as an open quantum system. It restricts soft QED to an exterior algebra and employs the Feynman–Vernon influence functional to capture the inequivalent histories monitored by the horizon, thereby constructing a completely positive Schur channel that governs the decoherence dynamics. The study innovatively proposes a charged qutrit interferometer based on Bargmann holonomies in the soft phase space near the horizon, yielding a measurable holonomy phase identified with the symplectic area of a soft phase-space triangle. It further establishes constraints from Gram positivity, a quantum erasure bound, and a non-Markovianity criterion. This framework enables falsifiable experimental tests of scaling laws for soft/hard processes, common-mode structures, and triangulation invariants, transcending the conventional two-path visibility paradigm.

0 citationsRead paper

Infrared Safety from ZX-Diagrams: A Categorical Proof of Soft-QED as Open Quantum System

Jun 29, 2026

This work addresses the infrared divergence problem in quantum electrodynamics by treating soft photons as an environment and hard processes as a system, establishing a non-perturbative, categorical framework for open quantum systems based on discard ZX-calculus. It provides the first diagrammatic, rigorous proof of the consistency between the Bloch–Nordsieck cancellation mechanism and the soft photon theorem. The study derives the corresponding Schur channel and an exact Lindblad generator, thereby elucidating the decoherence mechanism acting on off-diagonal elements of hard states. Furthermore, it introduces a local CPTP certification protocol that enables constant-time verification of trace preservation. By integrating categorical quantum semantics with nonequilibrium field theory, this approach offers a novel paradigm for infrared safety.

0 citationsRead paper

Egocentric Whole-Body Human Mesh Recovery with Prior-Guided Learning

May 08, 2026

Egocentric full-body mesh reconstruction from monocular head-mounted cameras struggles to recover fine-grained details of hands and face due to the lack of reliable ground-truth annotations based on parametric models like SMPL-X. This work proposes a prior-guided learning framework that generates high-fidelity pseudo ground truth through optimization-driven refinement. By integrating exocentric HMR model transfer, a diffusion-based pose prior, and a deterministic fisheye undistortion module, our approach achieves, for the first time, high-fidelity egocentric reconstruction of the entire body—including hands and face. Extensive evaluations demonstrate significant improvements over existing methods across multiple benchmarks, with the proposed pseudo ground truth outperforming conventional regression-based strategies. The code and annotated data are publicly released.

0 citationsRead paper