47 citations · 259 across the 24 of their papers we have counts for
24 papers
Probing nontrivial fusion of Majorana zero modes via near-adiabatic coupling
Jing Bai, Luting Xu, Wei Feng +1
We propose and simulate a near-adiabatically coupling probing scheme for nontrivial fusion of a pair of Majorara zero modes (MZMs). The scheme can avoid the complexity of oscillati…
Chirality, Nonreciprocity and Symmetries for a Giant Atom
Luting Xu, Lingzhen Guo
Chiral and nonreciprocal quantum devices are crucial for signal routing and processing in a quantum network. In this work, we study the chirality and nonreciprocity of a giant atom…
Transport and fusion of Majorana zero modes in the presence of nonadiabatic transitions
Qiongyao Wang, Jing Bai, Luting Xu +2
We perform simulations for transport and nontrivial fusion of Majorana zero modes in topological superconducting quantum wires. We uncover interesting behaviors of nonadiabatic tra…
Catch and release of propagating bosonic field with non-Markovian giant atom
Luting Xu, Lingzhen Guo
The non-Markovianity of physical systems is considered to be a valuable resource that has potential applications to quantum information processing. The control of traveling quantum…
Probing the non-Abelian fusion of a pair of Majorana zero modes
Jing Bai, Qiongyao Wang, Luting Xu +2
In this work, we perform real time simulations for probing the non-Abelian fusion of a pair of Majorana zero modes (MZMs). The nontrivial fusion outcomes can be either a vacuum, or…
Dynamics simulation of braiding two Majorana-zero-modes via a quantum dot
Luting Xu, Jing Bai, Wei Feng +1
In this work we perform real time simulations for the dynamics of braiding a pair of Majorana zero modes (MZMs) through a quantum dot in a minimal setup of pure 1D realization. We…
Quality analysis for precision metrology based on joint weak measurements without discarding readout data
Lupei Qin, Luting Xu, Xin-Qi Li
We present a theoretical analysis for the metrology quality of joint weak measurements (JWM), in close comparison with the weak-value-amplification (WVA) technique. We point out th…
Transport probe of nonadiabatic transition caused by Majorana moving
Luting Xu, Xin-Qi Li
We propose a transport probe scheme to detect the nonadiabatic transition caused by Majornana moving, which is relevant to the braiding operations in topological quantum computatio…
Quantum transfer through a continuum under continuous monitoring
Luting Xu, Xin-Qi Li
In this work we extend our previous studies on the quantum transfer of a particle through a finite-bandwidth continuum under frequent detections, by replacing the assumed frequent…
Revisit the non-locality of Majorana zero modes and teleportation: Bogoliubov-de Gennes equation based treatment
Xin-Qi Li, Luting Xu
The nonlocal nature of the Majorana zero modes implies an inherent teleportation channel and unique transport signatures for Majorana identification. In this work we make an effort…
Theory for frequent measurements of spontaneous emissions in non-Markovian environment: beyond Lorentzian spectrum
Luting Xu, Xin-Qi Li
The measurement-result-conditioned evolution of a system (e.g. an atom) with spontaneous emissions of photons is well described by the quantum trajectory (QT) theory. In this work…
Majorana dc Josephson current mediated by a quantum dot
Luting Xu, Xin-Qi Li, Qing-Feng Sun
The Josephson supercurrent through the hybrid Majorana--quantum dot--Majorana junction is investigated. We particularly analyze the effect of spin-selective coupling between the Ma…
Counting statistics of photon emissions detected in non-Markovian environment
Luting Xu, Xin-Qi Li
In this work we present a large-deviation analysis for the counting statistics of atomic spontaneous emissions continuously detected in finite-bandwidth non-Markovian environment.…
Qubit state tomography in superconducting circuit via weak measurements
Lupei Qin, Luting Xu, Wei Feng +1
The standard method of "measuring" quantum wavefunction is the technique of {\it indirect} quantum state tomography. Owing to conceptual novelty and possible advantages, an alterna…
Quantum trajectories under frequent measurements in non-Markovian environment
Luting Xu, Xin-Qi Li
In this work we generalize the quantum trajectory (QT) theory from Markovian to non-Markovian environments. We model the non-Markovian environment by using a Lorentzian spectral de…
Quantum plateau of Andreev reflection induced by spin-orbit coupling
Luting Xu, Xin-Qi Li
In this work we uncover an interesting quantum plateau behavior for the Andreev reflection between a one-dimensional quantum wire and superconductor. The quantum plateau is achieve…
Revisit the spin-FET: Multiple reflections, inelastic scattering, and lateral size effects
Luting Xu, Xin-Qi Li, Qing-feng Sun
We revisit the spin-injected field effect transistor (spin-FET) by simulating a lattice model based on recursive lattice Green's function approach. In the one-dimensional case and…
Quantum transfer through a non-Markovian environment under frequent measurements and Zeno effect
Luting Xu, Yunshan Cao, Xin-Qi Li +2
We study transitions of a particle between two wells, separated by a reservoir, under the condition that the particle is not detected in the reservoir. Conventional quantum traject…
Nonadiabatic molecular dynamics simulation: An approach based on quantum measurement picture
Wei Feng, Luting Xu, Xin-Qi Li +2
Mixed-quantum-classical molecular dynamics simulation implies an effective measurement on the electronic states owing to continuously tracking the atomic forces.Based on this insig…
Quantum Trajectory Approach to Molecular Dynamics Simulation with Surface Hopping
Wei Feng, Luting Xu, Xin-Qi Li +1
The powerful molecular dynamics (MD) simulation is basically based on a picture that the atoms experience classical-like trajectories under the exertion of classical force field de…
Non-Markovian Transmission through Two Quantum Dots Connected by a Continuum
Yunshan Cao, Luting Xu, Jianyu Meng +1
We consider a transport setup containing a double-dot connected by a continuum. Via an exact solution of the time-dependent Schrödinger equation, we demonstrate a highly non-Markov…
Undetectable quantum transfer through a continuum
Jing Ping, Yin Ye, Xin-Qi Li +2
We demonstrate that a quantum particle, initially prepared in a quantum well, can propagate through a reservoir with a continuous spectrum and reappear in a distant well without be…
Generating and stabilizing the GHZ state in circuit QED: Joint measurement, Zeno effect and feedback
Wei Feng, Peiyue Wang, Xinmei Ding +2
In solid-state circuit QED system, we extend the previous study of generating and stabilizing two-qubit Bell state [Phys. Rev. A 82, 032335 (2010)], to three-qubit GHZ state. In di…
Deterministic creation and stabilization of entanglement in circuit QED by homodyne-mediated feedback control
Zhuo Liu, Lulin Kuang, Kai Hu +4
In the solid-state circuit QED system and based on the homodyne measurement in dispersive regime, we demonstrate that a homodyne-current-based feedback can create and stabilize hig…