Zezhu Zeng

activity

20242026

collaborators

4 papers

physics.chem-ph2026

Economised path integrals

Zezhu Zeng, David E. Manolopoulos

The Hessian of the ring polymer spring potential in the standard Trotter path integral is a $P \times P$ symmetric circulant matrix with a centroid eigenvalue of zero. All such matr…

cond-mat.mtrl-sci2026

Lattice thermal transport from phonon spectra beyond perturbation theory

Zezhu Zeng, Michele Simoncelli, David E. Manolopoulos

We develop a molecular dynamics framework to compute the mode-resolved phonon spectral density from classical correlations of an annihilation-like phonon variable. For harmonic osc…

cond-mat.mtrl-sci2025

Thermal transport of amorphous hafnia across the glass transition

Zezhu Zeng, Xia Liang, Zheyong Fan +3

Heat transport in glasses across a wide range of temperature is vital for applications in gate dielectrics and heat insulator. However, it remains poorly understood due to the chal…

cond-mat.mtrl-sci2024

Lattice distortion leads to glassy thermal transport in crystalline Cs $_{3}$ Bi $_{2}$ I $_{6}$ Cl $_{3}$

Zezhu Zeng, Zheyong Fan, Michele Simoncelli +5

The glassy thermal conductivities observed in crystalline inorganic perovskites such as Cs $_{3}$ Bi $_{2}$ I $_{6}$ Cl $_{3}$ is perplexing and lacking theoretical explanations. Here, we first e…

Economised path integrals

Lattice thermal transport from phonon spectra beyond perturbation theory

Thermal transport of amorphous hafnia across the glass transition

Lattice distortion leads to glassy thermal transport in crystalline Cs3​Bi2​I6​Cl3​

Lattice distortion leads to glassy thermal transport in crystalline Cs $_{3}$ Bi $_{2}$ I $_{6}$ Cl $_{3}$