Cohen, Doron
Faculty
- dcohen@bgu.ac.il
- Office
- 54/310
- Phone
- 08-6477557
- Website
- http://www.bgu.ac.il/~dcohen
- Research type
- Theoretical
- Research topics
Quantum chaos; Driven mesoscopic systems; Interplay of stochastic and coherent dynamics.
- Researcher identification
- ORCID
Responsibilities
- 203-1-3401 Project 1 (Projects lecturer incharge), 2025A
- 203-1-3431 Project 2 (Projects lecturer incharge), 2025A
- 203-2-4121 Advanced Quantum Mechanics (Lecturer), 2025A
- 203-1-3401 Project 1 (Projects lecturer incharge), 2025 B
- 203-1-1651 Modern Physics for Software Engineers (Lecturer), 2025 B
Research group
- Postdoc, Anant Vijay Varma
- Postdoc, Yehoshua Winsten
Past postdocs *
Past graduate students *
- Ben Avnit, PhD (2024)
- Ben Avnit, MSc (2023)
- Dmitry Boriskovsky, MSc (2021)
- Dekel Shapira, PhD (2020)
- Isaac Weinberg, MSc (2018)
- Geva Arwas, PhD (2018)
- Gitit Feingold, MSc (2018)
- Daniel Hurowitz, PhD (2016)
- Yaron De Leeuw, MSc (2013)
- Geva Arwas, MSc (2013)
- Daniel Hurowitz, MSc (2012)
- Dotan Davidovitch, MSc (2012)
- Maya Chuchem, PhD (2012)
- Itamar Sela, PhD (2010)
- Alexander Stotland, PhD (2010)
- Maya Chuchem, MSc (2008)
- Yoav Etzioni, MSc (2006)
- Itamar Sela, MSc (2006)
- Chen Sarig, MSc (2006)
- Alexander Stotland, MSc (2005)
Past undergraduate students *
* Past students / postdocs data might be incompleteResearch 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.