166 citations · 893 across the 23 of their papers we have counts for
23 papers
Measurement-induced phase transition in space
Jia-Qiang Li, Liang-Jun Zhai, Shuo Liu +1
Measurement-induced phase transitions (MIPTs) in monitored quantum circuits are usually characterized by preparing steady states at different uniform measurement probabilities. Her…
Enhanced Electron Spin Coherence in a GaAs Quantum Emitter
Giang N. Nguyen, Clemens Spinnler, Mark R. Hogg +10
A spin-photon interface should operate with both coherent photons and a coherent spin to enable cluster-state generation and entanglement distribution. In high-quality devices, sel…
Magnon-magnon interaction in monolayer MnBiTe
Yiqun Liu, Liangjun Zhai, Songsong Yan +2
MnBiTe, the first confirmed intrinsic antiferromagnetic topological insulator, has garnered increasing attention in recent years. Here we investigate the energy correction…
Kibble-Zurek scaling in one-dimensional localization transitions
Xuan Bu, Liang-Jun Zhai, Shuai Yin
In this work, we explore the driven dynamics of the one-dimensional (D) localization transitions. By linearly changing the strength of disorder potential, we calculate the evolu…
Quantum criticality in the disordered Aubry-André model
Xuan Bu, Liang-Jun Zhai, Shuai Yin
In this paper, we explore quantum criticality in the disordered Aubry-André (AA) model. For the pure AA model, it is well-known that it hosts a critical point separating an extende…
Structural symmetry-breaking to explain radiative Auger transitions in self-assembled quantum dots
Krzysztof Gawarecki, Clemens Spinnler, Liang Zhai +6
The optical spectrum of a quantum dot is typically dominated by the fundamental transition between the lowest-energy configurations. However, the radiative Auger process can result…
Nonequilibrium dynamics of the localization-delocalization transition in the non-Hermitian Aubry-André model
Liang-Jun Zhai, Guang-Yao Huang, Shuai Yin
In this paper, we investigate the driven dynamics of the localization transition in the non-Hermitian Aubry-André model with the periodic boundary condition. Depending on the stren…
Quantum Interference of Identical Photons from Remote GaAs Quantum Dots
Liang Zhai, Giang N. Nguyen, Clemens Spinnler +6
Photonic quantum technology provides a viable route to quantum communication, quantum simulation, and quantum information processing. Recent progress has seen the realisation of bo…
Optically driving the radiative Auger transition
Clemens Spinnler, Liang Zhai, Giang N. Nguyen +8
In a radiative Auger process, optical decay is accompanied by simultaneous excitation of other carriers. The radiative Auger process gives rise to weak red-shifted satellite peaks…
Cascade of the delocalization transition in a non-Hermitian interpolating Aubry-Andr{é}-Fibonacci chain
Liang-Jun Zhai, Guang-Yao Huang, Shuai Yin
In this paper, the interplay of the non-Herimiticity and the cascade of delocalization transition in the quasi-periodic chain is studied. The study is applied in a non-Hermitian in…
Large-Range Frequency Tuning of a Narrow-Linewidth Quantum Emitter
Liang Zhai, Matthias C. Löbl, Jan-Philipp Jahn +5
A hybrid system of a semiconductor quantum dot single photon source and a rubidium quantum memory represents a promising architecture for future photonic quantum repeaters. One of…
Many-body localization in a non-Hermitian quasi-periodic system
Liang-Jun Zhai, Shuai Yin, Guang-Yao Huang
In the present study, the interplay among interaction, topology, quasiperiodicity, and non-Hermiticity is studied. The hard-core bosons model on a one-dimensional lattice with asym…
Low-Noise GaAs Quantum Dots for Quantum Photonics
Liang Zhai, Matthias C. Löbl, Giang N. Nguyen +6
Quantum dots are both excellent single-photon sources and hosts for single spins. This combination enables the deterministic generation of Raman-photons -- bandwidth-matched to an…
A wave-function ansatz method for calculating field correlations and its application to the study of spectral filtering and quantum dynamics of multi-emitter systems
Sumanta Das, Liang Zhai, Mantas Čepulskovskis +4
We develop a formalism based on a time-dependent wave-function ansatz to study correlations of photons emitted from a collection of two-level quantum emitters. We show how to simul…
Radiative Auger Process in the Single-Photon Limit
Matthias C. Löbl, Clemens Spinnler, Alisa Javadi +8
In a multi-electron atom, an excited electron can decay by emitting a photon. Typically, the leftover electrons are in their ground state. In a radiative Auger process, the leftove…
Out-of-time-ordered correlator in non-Hermitian quantum systems
Liang-Jun Zhai, Shuai Yin
We study the behavior of the out-of-time-ordered correlator (OTOC) in a non-Hermitian quantum Ising system. We show that the OTOC can diagnose not only the ground state exceptional…
The internal energies of Heisenberg magnetic systems
Huai-Yu Wang, Liang-Jun Zhai, Meichun Qian
The internal energies, including transverse and longitudinal parts, of quantum Heisenberg systems for arbitrary spin S are investigated by the double-time Green's function method.…
Correlations between Optical Properties and Voronoi-Cell Area of Quantum Dots
Matthias C. Löbl, Liang Zhai, Jan-Philipp Jahn +7
A semiconductor quantum dot (QD) can generate highly indistinguishable single-photons at a high rate. For application in quantum communication and integration in hybrid systems, co…
Scaling of the chiral magnetic effect in quantum diffusive Weyl semimetals
Yen-Ting Lin, Liang-Jun Zhai, Chung-Yu Mou
We investigate the effect of short-range spin-independent disorder on the chiral magnetic effect (CME) in Weyl semimetals. Based on a minimum two-band model, the disorder effect is…
Hybridized Kibble-Zurek scaling in the driven critical dynamics across an overlapping critical region
Liang-Jun Zhai, Huai-Yu Wang, Shuai Yin
The conventional Kibble-Zurek scaling describes the scaling behavior in the driven dynamics across a single critical region. In this paper, we study the driven dynamics across an o…
Quantum optics with near lifetime-limited quantum-dot transitions in a nanophotonic waveguide
Henri Thyrrestrup, Gabija Kiršanskė, Hanna Le Jeannic +13
Establishing a highly efficient photon-emitter interface where the intrinsic linewidth broadening is limited solely by spontaneous emission is a key step in quantum optics. It open…
Magnetic phases and unusual topological electronic structures of Weyl semimetals in strong interaction limit
Liang-Jun Zhai, Po-Hao Chou, Chung-Yu Mou
The interplay of electronic band structures and electron-electron interactions is known to brew new phases in condensed matter. In this paper, we investigate thermodynamic phases a…
Emergence of fermionic finite-temperature critical point in a Kondo lattice
Po-Hao Chou, Liang-Jun Zhai, Chung-Hou Chung +2
The underlying Dirac point is central to the profound physics manifested in a wide class of materials. However, it is often difficult to drive a system with Dirac points across the…