20 citations · 36 across the 7 of their papers we have counts for
7 papers
Effective Field Theory of Operator Scrambling from Strong-to-Weak Symmetry Breaking
Bai-Lin Cheng, Shao-Kai Jian, Zhi-Cheng Yang
Operator scrambling is commonly diagnosed by the growth of out-of-time-ordered correlators (OTOCs), yet a general symmetry principle underlying their effective dynamics has remaine…
Anomalous spin transport in integrable random quantum circuits
Songlei Wang, Chenguang Liang, Hongzheng Zhao +1
High-temperature spin transport in integrable quantum spin chains exhibits a rich dynamical phase diagram, including ballistic, superdiffusive, and diffusive regimes. While integra…
Hydrodynamic modes and operator spreading in a long-range center-of-mass-conserving Brownian SYK model
Bai-Lin Cheng, Shao-Kai Jian, Zhi-Cheng Yang
We study a center-of-mass-conserving Brownian complex Sachdev-Ye-Kitaev model with long-range (power-law) interactions characterized by . The kinetic constraint and long-ran…
Uncovering Quantum Many-body Scars with Quantum Machine Learning
Jiajin Feng, Bingzhi Zhang, Zhi-Cheng Yang +1
Quantum many-body scars are rare eigenstates hidden within the chaotic spectra of many-body systems, representing a weak violation of the eigenstate thermalization hypothesis (ETH)…
Leveraging static quantum many-body scars into period-doubled responses
Wentai Deng, Zhi-Cheng Yang
We propose a scheme that generates period-doubled responses via periodically driving certain Hamiltonians hosting quantum many-body scars, akin to recent experimental observations…
Distinction Between Transport and Rényi Entropy Growth in Kinetically Constrained Models
Zhi-Cheng Yang
Conservation laws and the associated hydrodynamic modes have important consequences on the growth of higher Rényi entropies in isolated quantum systems. It has been shown in variou…
Spin-current Seebeck effect in quantum dot systems
Zhi-Cheng Yang, Qing-Feng Sun, X. C. Xie
We first bring up the concept of spin-current Seebeck effect based on a recent experiment [Nat. Phys. {\bf 8}, 313 (2012)], and investigate the spin-current Seebeck effect in quant…