Cohen, Doron

Research

Responsibilities

• Computing Committee (Shnaton webmaster)
• External Tasks (Faculty appointment committee member)
• 203-2-4121 Advanced Quantum Mechanics (Lecturer), 2026A

Research Group

• Rajat Rajat — Postdoc

Past Postdocs

• Anant Vijay Varma (2025)
• Yehoshua Winsten (2025)
• Dekel Shapira (2021)
• Geva Arwas (2019)
• Christine Khripkov (2019)

Past Graduate Students

• Yehoshua Winsten — PhD (2024), MSc (2020)
• Ben Avnit — PhD (2024), MSc (2023)
• Dmitry Boriskovsky — MSc (2021)
• Dekel Shapira — PhD (2020)
• Isaac Weinberg — MSc (2018)
• Gitit Feingold — MSc (2018)
• Geva Arwas — PhD (2018), MSc (2013)
• Daniel Hurowitz — PhD (2016), MSc (2012)
• Yaron De Leeuw — MSc (2013)
• Dotan Davidovitch — MSc (2012)
• Maya Chuchem — PhD (2012), MSc (2008)
• Alexander Stotland — PhD (2010), MSc (2005)
• Itamar Sela — PhD (2010), MSc (2006)
• Yoav Etzioni — MSc (2006)
• Chen Sarig — MSc (2006)

Past Undergraduate Students

• Naama Harcavo (2023)
• Rotem Berman (2020)

Research Highlights

Superfluidity and thermalization in low dimensional Bose-Hubbard circuits

Circuits with condensed bosons can support superflow. Such circuits, if realized, will be used as QUBITs (for quantum computation) or as SQUIDs (for sensing of acceleration or gravitation). We are studying the feasibility and the design considerations for such devices. The key is to develop a theory for the superfluidity in an atomtronic circuit. Such theory goes beyond the traditional framework of Landau and followers, since is involves ''Quantum chaos'' considerations.

Non-equilibrium steady state of low-dimensional systems

It is possible to induce non-equilibrium steady state current, which required e.g. a radiation source. We have studied the non-monotonic dependence of the current on the intensity of the driving, and its statistical properties. We also have addressed questions that concern the relaxation of such current, and how it depends on percolation and localization properties of the model.