People Mail List

Name	Primary Category	Discipline
Zevin Vilen	Emeriti	Condensed Matter Physics
Zhang MingMing	Post-Docs	Nonlinear
Zigler Arie	Emeriti	Atomic, Molecular and Optical Physics
Zini Gabriel	Technical Staff
Ziskin Shlomi	Post-Docs	Astrophysics and Relativity

Upcoming Events

Monday, May 12th

Physics Colloquium : ""
- Start time: 12:00pm
- End date: Monday, May 12th
- End time: 01:30pm
- Lecturer: Ruchman Yonathan, Bar IlanAbstract:
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Tuesday, May 13th

Astrolunch: Barak Rom's PhD talk
- Start time: 03:00pm
- End date: Tuesday, May 13th
- End time: 04:00pm
- Contact: Dima Ofengeim
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Wednesday, May 14th

Nonlinear Physics seminar: "Run and tumble dynamics in 1D"
- Start time: 12:00pm
- End date: Wednesday, May 14th
- End time: 01:30pm
- Lecturer: Prof. Oded Farago, Ben-Gurion University in the Negev, Israel
  Abstract:
  Run and tumble dynamics is a model that typically describes the motion of self-propelled particles, especially in the context of bacterial motility. It’s most famously used to model the behavior of E. coli and similar microorganisms. In the simplest setting, a run-and-tumble particle (RTP) moves with a fixed speed, undergoing random tumbling events at a constant rate. In one-dimension (1D), the overdamped dynamics of an RTP is described by a set of two Fokker-Planck equations, and the steady-state distribution is known for any arbitrary confining potential. In the talk, I will present three recent works presenting different extensions of the RTP model that consider: (i) inertial effects [1], (ii) tumbling at a non-constant rate (non-Markovian dynamics) [2], and (iii) run-and-tumble dynamics at a finite temperature (in contact with a heat bath) [3].
  
  [1] N. R. Smith and OF, Phys. Rev. E 106, 054118 (2022).
  [2] OF and N. R. Smith, Phys. Rev. E 109, 044121 (2024).
  [3] RK Singh and OF, Submitted to PRE (2025)
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Thursday, May 15th

Astro Journal Club
- Start time: 11:00am
- End date: Thursday, May 15th
- End time: 11:45am
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Condensed-Matter Seminar: "Time-resolved attosecond interferometry"
- Start time: 12:00pm
- End date: Thursday, May 15th
- End time: 01:30pm
- Lecturer: Omer Kneller, Department of Complex Systems, Faculty of Physics, Weizmann Institute of ScienceAbstract:Attosecond science has revolutionized the ability to capture extremely fast phenomena in nature, opening a window into a new temporal regime, in which electron dynamics are observed on their natural time scale. Attosecond metrology relies on the ability to produce optical pulses, having attosecond duration, where the electronic dynamics are imprinted in the spectral intensity, phase and polarization state of such attosecond pulses. However, the optical measurement resolves only the spectral intensity while the phase and polarization information are lost, preventing a direct access to the full information encoded in the attosecond signal.In my talk, I will describe how we extend one of the most fundamental optical schemes, interferometry, to the attosecond timescale. Our state-of-the-art all-optical attosecond interferometry scheme reveals some of the fastest phenomena in nature, such as the moment at which an electron is photoionized or the evolution of an electronic wavefunction under the tunneling barrier, as it propagates in a classically forbidden region. Our recent development of attosecond transient interferometry enables us to decouple and directly follow the temporal evolution of individual quantum paths induced in a light-driven system.Bio: After completing his BSc in physics at the Hebrew University of Jerusalem, Dr. Kneller joined Prof. Nirit Dudovich’s lab at the Weizmann Institute, where he performed his MSc and PhD research in attosecond science. Dr. Kneller recently joined the group of Prof. Rupert Huber at the University of Regensburg, Germany, as a postdoctoral fellow, studying lightwave electronics. References:1. D. Azoury, O. Kneller et al., Nature Photonics 13, 54 (2019).2. D. Azoury*, O. Kneller* et al., Nature Photonics 13, 198 (2019).3. O. Kneller, D. Azoury et al., Nature Photonics 16, 304 (2022).4. O. Kneller*, C. Mor*, N. Klimkin* et al., Nature Photonics (2024).5. O. Kneller, T. Witting et al., under review, (2025). Preprint: http://bit.ly/3Erudp9
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Special Astrolunch: Sergey Popov
- Start time: 01:00pm
- End date: Thursday, May 15th
- End time: 02:00pm
- Contact: Dima Ofengeim
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