LiFE潘义明课题组
RESEARCH / THEORY & EXPERIMENT

光与自由电子,
量子与时空。

量子,量子,还是TMD量子!强场,强场,还是TMD强场!

在强场和量子领域中,研究自由电子和光的相互作用。应用物理目标是实现电子和光场之间的能量、动量和信息的可控转移;基础物理目标是探索电磁相互作用的深层结构。

RESEARCH DIRECTIONS

三个相互连接的研究方向

01

超快、强场与量子光物质相互作用

激光诱导的自由电子加速(DLA)和自由电子辐射(FEL)

光子诱导的近场电子显微镜(PINEM)

阿秒动力学调控以及量子弱测量

02

拓扑光子学与量子模拟

激光直写,等离子体激化,微波等波导中的拓扑光子学。

超快PINEM电子合成维度。拓扑Floquet时间晶体,非线性光子时间晶体。

时间调制的动量带隙孤子,次谐波产生和非线性调制不稳定性等。

03

凝聚态与场论

Weyl半金属的手性输运,二维材料的量子输运,Weyl半金属光学行为。

在周期驱动系统中的量子反常和Callan-Harvey机制。

持续拓展的方向

自由电子量子光学(QFEL、DLA、UTEM)、自由电子凝聚态物理(material-free)、光子时空晶体、量子反常、光孤子、对偶性与量子弱测量,以及神经算子和 Koopman 算子(AI4Science)。

我们关心电子本身、光本身;材料是实现相位匹配与场增强的媒介。

光与自由电子研究大图景:入射光子、量子电子波包、光学探测器和电子能谱仪
MOTIVATION
“Shaping electron with light,
shaping light with electron.”
— Ido Kaminer · Technion

“潘兄,会不会光就是电,电就是光?” — Zhaopin Chen · Technion

RESEARCH I / CONCEPTS & MODELS

从 Floquet 工程到量子测量

课题组研究示意图

[Rep. Prog. Phys. 88 017601(2025); PRL 132, 3 (2024): 035001; Light Science & Applications 12:267 (2023); Science Advances 9, eadg8516(2023); PRL 126, 137403 (2021); PRL122.183204 (2019).]

Research I:

• Floquet engineering in optics and condensed matters: Floquet engineering is a paradigm of tailoring and manipulating a system by a periodic drive [Nature Communications (2022); Laser & Photon. Rev. (2022); Laser & Photon. Rev. (2015)].

Floquet engineering in optics and condensed matters: Floquet engineering is a paradigm of tailoring and manipulating a system by a periodic drive [Nature Communications (2022); Laser & Photon. Rev. (2022); Laser & Photon. Rev. (2015)].

• Momentum gaps (k-gaps) and energy-momentum gaps(ωk-gaps) [PRL 130, 233801 (2023)]

Momentum gaps (k-gaps) and energy-momentum gaps(ωk-gaps) [PRL 130, 233801 (2023)]

• Floquet gauge anomalies in periodically driven systems: Anomalies are not dangerous, and they are ubiquitous associated with quantum vacuum and topology. We are focusing on exploring anomalies in driven systems [Physical Review Letters 130, 223403 (2023); ].

Floquet gauge anomalies in periodically driven systems: Anomalies are not dangerous, and they are ubiquitous associated with quantum vacuum and topology. We are focusing on exploring anomalies in driven systems [Physical Review Letters 130, 223403 (2023); ].

• Weak measurement and its realizations. Weak measurement can demonstrate the transition from quantum to classical [Light Science & Applications 12:267 (2023); Nature Physics, 16(12), 1206-1210 (2020).]. However, decoherence only leads to the statistics.

Weak measurement and its realizations. Weak measurement can demonstrate the transition from quantum to classical [Light Science & Applications 12:267 (2023); Nature Physics, 16(12), 1206-1210 (2020).]. However, decoherence only leads to the statistics.

• Riemann Hypothesis in quantum physics. Riemann hypothesis equals to Quantum mechanics?

Riemann Hypothesis in quantum physics. Riemann hypothesis equals to Quantum mechanics?
AI 与量子物理:早期探索笔记

• Prompt engineering for writing and free electron quantum neural networks

Prompt engineering三原则:

Principle 1: be very specific in yourinstructions.

Principle 2: is to ask GPT-3 to break itswork into small chunks.

Principle 3: ask GPT-3 to check and improve its own output.

自由电子量子神经网络:

I know nothing yet... But I will.

PDENet 数据库:

算力,算法,数据,数据,数据...

RESEARCH II / EXPERIMENTAL PLATFORMS

超快电子的产生、调控与探测

• Ultrafast electron generation and manipulation, and strong-field electron photon coupling at discontinuity.

• Design an ultrafast photoelectron gun and realize multi-photon free-free transition for low-energy free electrons.

• Floquet quantum simulators: optics, microwave, sounds, atoms and free electrons.

Floquet quantum simulators: optics, microwave, sounds, atoms and free electrons.

科学原理:

一言以蔽之,实现和探测超快电子和超快光子的量子纠缠!

基础科学价值和产品化应用前景:

首先,结合光学探测器和直接电子探测器实现时间关联符合测量,用于研究自由电子和光子的量子纠缠。其次,完成平台搭建后,进行优化和升级,并最终实现产品化,实现“超快电子量子显微镜”可广泛使用的实验平台!

实验平台建设

推进自由电子量子光学实验室、超快光学平台、超导单光子探测与超快透射电子显微镜相关子系统建设,连接理论预言与实验验证。

参与实验与理论探索 ↗