68 citations · 156 across the 10 of their papers we have counts for
10 papers
Short-time Accuracy and Intra-electron Correlation for Nonadiabatic Quantum-Classical Mapping Approaches
Haifeng Lang, Philipp Hauke
Nonadiabatic quantum-classical mapping approaches have significantly gained in popularity in the past several decades because they have acceptable accuracy while remaining numerica…
Time-dependent orbital-optimized coupled-cluster methods families for fermion-mixtures dynamics
Haifeng Lang, Takeshi Sato
Five time-dependent orbital optimized coupled-cluster (TD-ooCC) methods, of which four can converge to the complete active space self-consistent-field method, are presented for fer…
Disorder-free localization with Stark gauge protection
Haifeng Lang, Philipp Hauke, Johannes Knolle +2
Disorder-free localization in translation-invariant gauge theories presents a counterintuitive yet powerful framework of ergodicity breaking in quantum many-body physics. The fragi…
Gauge protection in non-Abelian lattice gauge theories
Jad C. Halimeh, Haifeng Lang, Philipp Hauke
Protection of gauge invariance in experimental realizations of lattice gauge theories based on energy-penalty schemes has recently stimulated impressive efforts both theoretically…
Generalized Discrete Truncated Wigner Approximation for Nonadiabtic Quantum-Classical Dynamics
Haifeng Lang, Oriol Vendrell, Philipp Hauke
Nonadiabatic molecular dynamics occur in a wide range of chemical reactions and femtochemistry experiments involving electronically excited states. These dynamics are hard to treat…
Reliability of lattice gauge theories in the thermodynamic limit
Maarten Van Damme, Haifeng Lang, Philipp Hauke +1
Although gauge invariance is a postulate in fundamental theories of nature such as quantum electrodynamics, in quantum-simulation implementations of gauge theories it is compromise…
Gauge-Symmetry Protection Using Single-Body Terms
Jad C. Halimeh, Haifeng Lang, Julius Mildenberger +2
Quantum-simulator hardware promises new insights into problems from particle and nuclear physics. A major challenge is to reproduce gauge invariance, as violations of this quintess…
A Universal Quantum Computing Virtual Machine
Qian-Tan Hong, Zi-Yong Ge, Wen Wang +8
A medium-scale quantum computer with full universal quantum computing capability is necessary for various practical aims and testing applications. Here we report a 34-qubit quantum…
Dynamical quantum phase transition for mixed states in open systems
Haifeng Lang, Yixin Chen, Qiantan Hong +1
Based on a kinematic approach in defining a geometric phase for a density matrix, we define the generalized Loschmidt overlap amplitude (GLOA) for an open system for arbitrary quan…
Diagonal entropy in many-body systems: Volume effect and quantum phase transitions
Zhengan Wang, Zheng-Hang Sun, Yu Zeng +4
We investigate the diagonal entropy(DE) of the ground state for quantum many-body systems, including the XY model and the Ising model with next nearest neighbour interactions. We f…