Quantum Technology Lab (QTL)
Our laboratory offers research projects combining theory and experiment.
The research deals with ultrafast light and matter interactions as a basis for quantum technologies such as metrology and quantum computing.
Projects manager: Shiran EvenHaim shiranev@campus.technion.ac.il
Simulating conditional displacement and GKP state with the IBM quantum computer
In this project, we will write a program that simulates continuous variable quantum computation using the IBM quantum computer's discrete system. We will simulate the conditional displacement gate and create an approximate GKP state of many qubits. We will investigate the limits of discrete to continuum and study the analogy between a quantum walk in discrete variables and the conditional displacement gate in continuous variables.
LabAdmin link: https://labadmin.ef.technion.ac.il/prj/project/view/ProjectId/7759
Key concepts: IBM quantum computer, GKP, conditional displacement, continuous variable quantum computation, quantum walk
Further reading:
 G. Baranes†, S. EvenHaim†, R. Ruimy†, A. Gorlach, R. Dahan, A. A. Diringer, S. HacohenGourgy, and I. Kaminer, Freeelectron interactions with photonic GKP states: universal control and quantum error correction, Phys. Rev. Res. 5, 043271 (2023)
Prerequisite: Modern quantum computing course 047006/046054 (studying the course while doing the project is okay)
Contact: Shiran EvenHaim shiranev@campus.technion.ac.il
Measuring superradiance and quantum properties of nanoemitters
In this project, we will investigate the unique properties of electromagnetic radiation emitted from different nanometer emitters excited by free electrons. These features include the photon statistics, the coherence of the radiation, and its spectrum. In addition, we will delve into superradiance, which is the radiation created when there are many exciters (free electrons) or emitters acting together coherently.
LabAdmin link: https://labadmin.ef.technion.ac.il/prj/project/view/ProjectId/7714
Key concepts: Photon statistics, cathodoluminescence, superradiance
Further reading:
 R. Ruimy†, A. Gorlach†, G. Baranes, and I. Kaminer, Superradiant Electron Energy Loss Spectroscopy, Nano Lett. 23, 779−787 (2023) (Supplementary material)
 A. Gorlach†, O., A. Pizzi†, R. Ruimy†, G. Baranes, N. Rivera, and I. Kaminer, Doublesuperradiant cathodoluminescence, Phys. Rev. A 109, 023722 (2024)
Contact: Yuval Adib yuvalad12@gmail.com
EM field tomography in 2D materials and plasmonic devices
In this project, we will deal with the development of innovative methods for measuring the electromagnetic field in a complete vector manner, that is, direct measurement of all the components of the field. Using these methods, we are interested in investigating twodimensional materials (materials made of a single number of atomic layers). In these materials, fundamental physical questions surround the way electromagnetic waves travel on the surface. Another direction of research is vector optical mods called Skyrmions, which exist in devices based on the interaction of light with the surface of a metal (plasmonic devices).
LabAdmin link: https://labadmin.ef.technion.ac.il/prj/project/view/ProjectId/7725
Key concepts: EM field tomography, 2D hyperbolic materials, optical skyrmions
Further reading:
 T. Fishman†, U. Haeusler†, R. Dahan, M. Yannai, Y. Adiv, T. Lenkiewicz Abudi, R. Shiloh, O. Eyal, P. Yousefi, G. Eisenstein, P. Hommelhoff, and I. Kaminer, Imaging the optical field inside nanophotonic devices, Nature Commun. 14, 3687 (2023) (Supplementary material)
Contact: Tal Fishman ftal@ef.technion.ac.il
Design and measurement of THz sources for electron beam shaping and control
In this project, we will develop and characterize laserpumped sources for generating short electromagnetic pulses in the terahertz range. These sources and the emitted radiation are used to shape the electron beam in the microscope, emphasizing the creation of short/monochromatic electron pulses. We will explore new experiments made possible by these pulses, such as quantum random walk.
LabAdmin link: https://labadmin.ef.technion.ac.il/prj/project/view/ProjectId/7726
Key concepts: Electron monochromation, electron phasespace manipulations
Further reading:
 M. Yannai†, Y. Adiv†, R. Dahan†, K. Wang, A. Gorlach, N. Rivera, T. Fishman, M. Krueger, and I. Kaminer, Lossless Monochromator in an Ultrafast Electron Microscope Using Nearfield THz Radiation, Phys. Rev. Lett. 131, 145002 (2023)
Contact: Michael Yannai yannai.michael@gmail.com
Probabilistic Shortest Path Algorithm for Quantum Communication
LabAdmin link: https://labadmin.ef.technion.ac.il/prj/project/view/ProjectId/7812
Key concepts: Random graphs, quantum communication, shortest path algorithms
Further reading:

Di Franco, Carlo, and D. Ballester, Optimal path for a quantum teleportation protocol in entangled networks, Phys. Rev.A 85, 010303 (2012)
Prerequisite:
 required courses: 44268  מבוא למבני נתונים ואלגוריתמים or equivalent. Any course in quantum information
 suggested courses: 46002  תכן וניתוח אלגוריתמים or equivalent
Contact: Nir Gutman nirgutman212@campus.technion.ac.il
LabAdmin link: https://labadmin.ef.technion.ac.il/prj/project/view/ProjectId/7813
Key concepts: Quantum Universality, Quantum circuits, Quantum noise channels, Machine Learning
Further reading:
 N. Gutman†, A. Gorlach†, O. Tziperman, R. Ruimy, and I. Kaminer, Universal Control of Symmetric States Using Spin Squeezing, Phys. Rev. Lett. 132, 153601 (2024)
 Required courses: Any course in quantum computation/algorithms/technology
 Ability to write goodquality code in python
 Experience with a Deep Neural Network tool. Preferably in python
 Good to have: Some familiarity with core concepts in quantum information