Academic

Name	Primary Category	Discipline/Position	Phone	Office
Glaberson William	Emeriti	Condensed Matter Physics	02 6584 346	Kaplun 19
Glasner Ami	Faculty	Astrophysics and Relativity	02 6584 727	Popick 110
Globus Noemie	Post-Docs	Astrophysics and Relativity	02 6584 997	Kaplun 103
Gnat Orly	Faculty	Astrophysics and Relativity	02 6586 851	Popick 112
Goldberg Isser	Emeriti	Biophysics and Interdisciplinary Research	02 6584 491	Popick 107
Goldstein Yehuda	Emeriti	Condensed Matter Physics	02 6584 676	Lewin, 105
Grossman Doron	Graduate Students	Nonlinear	02 6584 671	Levin Bldg.
Gutfreund Hanoch	Emeriti	Biophysics and Interdisciplinary Research	02 6584 802	Kaplun 109
Haim Menashe	Graduate Students
Harpaz Yotam	Graduate Students	Atomic, Molecular and Optical Physics	02 6586 083	Danciger B 120

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Upcoming Events

Tomorrow

Physics Colloquium : "Measurement-induced phase transitions"
- Start time: 12:00pm
- End date: Monday, May 12th
- End time: 01:30pm
- Lecturer: Prof. Jonathan Ruhman, Bar IlanAbstract:Measurement-induced phase transitions (MPT) are a class of dynamical phase transitions occurring in quantum many-body states undergoing non-unitary time evolution. For concreteness, consider a unitary evolution operator interspersed with local projective measurements. The transition is driven by p, the probability of a measurement appearing, both in space and time. As p is increased a sharp transition occurs between the "entangling" phase, where the system develops an extensive amount of entanglement, and the "dientagling" phase, where the measurements suppress entanglement and push the system to a steady state, very close to a product state. Such transitions can be important to quantum computation (e.g. to the applicability of quantum error correction codes in noisy quantum computers) and to the classical simulability of open quantum systems. In this talk I will provide an intuitive picture to understand the origin of this transition, by mapping quantum states evolving in time to a problem of percolation in d+1 dimensions [1,2,3]. I will explain why the percolation threshold provides only a bound on the true MPT, and show that in general, the two critical points differ. The universal properties of the MPT remain unknown and are the subject of ongoing research. I will conclude by presenting two recent approaches we have taken to attack this problem.[1] D. Aharonov, "Quantum to Classical Phase Transition in Noisy Quantum Computers," Phys. Rev. A 62, 062311 (2000)[2] A. Nahum, J. Ruhman, S. Vijay, and J. Haah, "Quantum Entanglement Growth under Random Unitary Dynamics," Phys. Rev. X 7, 031016 (2017)[3] B. Skinner, J. Ruhman, and A. Nahum, MeasurementInduced Phase Transitions in the Dynamics of Entanglement, Phys. Rev. X 9, 031009 (2019)
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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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