A5075914369- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Quantum many-body systems
- Diamond and Carbon-based Materials Research
- Quantum and electron transport phenomena
- Cold Atom Physics and Bose-Einstein Condensates
- Iron-based superconductors research
- Semiconductor materials and devices
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Superconductivity in MgB2 and Alloys
- Rare-earth and actinide compounds
- Organic and Molecular Conductors Research
- Magnetism in coordination complexes
- Opinion Dynamics and Social Influence
Nanjing University of Aeronautics and Astronautics
2023-2025
Ministry of Industry and Information Technology
2023-2024
Tsinghua University
2019
We experimentally realize a universal set of single-bit and two-bit geometric quantum gates by adiabatically controlling solid-state spins in diamond defect. Compared with the nonadiabatic approach, adiabatic scheme for computation offers unique advantage inherent robustness to parameter variations, which is explicitly demonstrated our experiment showing that remain unchanged when driving field amplitude varies factor 2 or detuning fluctuates range comparable inverse gate time. The reported...
Learning the Hamiltonian of a quantum system is indispensable for prediction dynamics and realization high fidelity gates. However, it significant challenge to efficiently characterize which has Hilbert space dimension exponentially growing with size. Here, we develop implement an adaptive method learn effective 11-qubit consisting one electron spin ten nuclear spins associated single nitrogen-vacancy center in diamond. We validate estimated by designing universal gates based on learnt...
To establish a solid-state-based framework for the coexistence of quantum many-body scars and criticality, we investigate spin-1 Kitaev chain with uniaxial single-ion anisotropy (SIA). In subspace uniform ${\mathbb{Z}}_{2}$ gauge fields, this model can be exactly mapped to spin-1/2 effective detuned PXP Hamiltonian, where SIA plays role static detuning term. The quench dynamics starting from product states is symmetric between positive negative values SIA, while phase transition spin liquid...
In this study, we explore the quantum critical phenomena in generalized Aubry-Andr\'{e} models, with a particular focus on scaling behavior at various filling states. Our approach involves using fidelity susceptibility to precisely identify mobility edges these systems. Through finite-size analysis of susceptibility, are able determine both correlation-length exponent and dynamical point model. Based Diophantine equation conjecture, can determines number subsequences Fibonacci sequence...
We investigate the topological gauge-theory terms and quantum criticality in spin-1 Kitaev chain with generic single-ion anisotropies (SIAs). The ground-state phase diagram, including spin liquid (KSL) gapless dimer phase, is determined by infinite time evolving block decimation (iTEBD) method. By varying strength of uniaxial SIA, there transition between KSL which equivalent to confinement-deconfinement lattice Schwinger model a $\theta$-angle $\pi$. Here, we demonstrate an added rhombic...
Deconfined quantum critical points (DQCPs) are proposed as unconventional second-order phase transitions beyond the Landau-Ginzburg-Wilson paradigm. The nature and experimental realizations of DQCPs crucial issues importance. We illustrate potential for between valence bond solid state antiferromagnetic to arise in optical lattices containing frustrated dipolar bosons subject hard-core constraints. emergence is comprehended through fusion two Berezinskii-Kosterlitz-Thouless (BKT)...
To establish a solid-state-based framework for the coexistence of quantum many-body scars and criticality, we investigate spin-1 Kitaev chain with uniaxial single-ion anisotropy (SIA). In subspace uniform $\mathbb{Z}_2$ gauge fields, this model can be exactly mapped to spin-1/2 effective detuned PXP Hamiltonian, where SIA plays role static detuning term. The quench dynamics starting from product states is symmetric between positive negative values SIA, while phase transition spin liquid...