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Research Group

Quantum Computation and Optimization Group

Quantum Computation and Optimization Group
Quantum Computation and Optimization
Group
Dr. Adi Pick

Quantum algorithms present promising potential for future technology. Despite the theoretical ability of a quantum computer to accomplish remarkable tasks, such as breaking RSA encryption in an ideal environment, practical limitations, particularly noise, significantly hinder their performance. 

Our group specializes in developing tools to comprehend and manage noise in open quantum systems. We use mathematical concepts like symmetry, degeneracy, and topology to discover robust protocols for controlling quantum systems in noisy environments. We explore situations where noise can be used to our advantage, especially near special degeneracies called exceptional points.

 

 

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The Low-Dimensional Laboratory

The Low-Dimensional Laboratory
The Low-Dimensional
Laboratory

What happens when millions of electrons are crammed into a material with the thickness of a single atom? This question turns out to be one of the most complex that humans have ever dared to ask, and for decades theorists and experimentalists have been challenged to answer it. But how do we probe these tiny materials?

In our group, we develop new ways to measure the rich physics of low-dimensional materials like atomically-thin sheets and nanometer-wide nanotubes, and use these insights to develop new devices with novel functionality. We focus particularly on energy: how it flows through materials and what that tells us about emergent states of matter.

 

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The Nanophotonic electron acceleration and light-matter interaction at the quantum limit Laboratory

The Nanophotonic electron acceleration and light-matter interaction at the quantum limit Laboratory
The Nanophotonic electron acceleration and light-matter interaction at the quantum limit
Laboratory

We research, design, and build an innovative and ground-breaking electron accelerator based on nanophotonic structures manufactured in a state-of-the-art clean room in the Nanofabrication Center at the University.

The research combines many areas: nanofabrication, electromagnetic simulations, nanophotonics and wave optics, ultrafast and ultrashort lasers, electron microscopes, particle accelerators, and design and production of electron-optical systems: magnetic and electrostatic lenses, and more.

The results of the research are primarily meant for applied science and applied research, with an eye towards applications in the various industries, including in the medical treatment of cancer by electron irradiation.

 

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Quantum Information, Simulation and Sensing

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Quantum Information,
Simulation and Sensing
Our research focuses on addressing and manipulating isolated quantum systems, with the following goals:
 
  • Studying fundamental quantum physics and quantum information science
  • Using them as building blocks for quantum computing and quantum simulation of many-body systems
  • Devising novel, sensitive nanoscale sensors
Currently our research is based on a specific defect in diamond, the Nitrogen Vacancy (NV) color center, which exhibits remarkable and unique properties, including long coherence (~ ms) times at room temperature, optical initialization and readout, and coherent microwave control.
 
 

 

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Spintronics Lab

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Spintronics
Lab
Our group works on a new technology called Spintronics which is short for “spin electronics”. This technology relys on the spin of the electrons that flow in the circuit in contrast to the traditional electronics that depends only on their charge. In our group we explore new ways to manipulate electronic spins in atomically engineered devices to overcome the limits of conventional electronics for sensing, processing, and memory applications. 
 

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The Optoelectronic Computing Laboratory

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The Optoelectronic
Computing Laboratory
The Optoelectronic Computing Laboratory (OECL) of Prof Agranat is creating and developing singular devices and circuits for implementing futuristic complex schemes of sensing, data processing, and communication. The devices and circuits created at the OECL implement functions that cannot be implemented by the current state of the art, and hitherto, a roadmap for their implementation has not been anticipated.  The Research activity in the lab is spanned from the fundamental principles of condensed matter physics, and nonlinear optics, through the invention and construction of optoelectronic devices and circuits with unique functionalities, culminating in the conception computer system architectures that exploit these functionalities.
 
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Nanophotonic Devices Lab

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Nanophotonic
Devices Lab
Nanophotonics is the science of light-matter interactions at the nanoscale. In our group we focus on nanophotonic devices, utilizing variety of materials including  solids (metals, semiconductors, dielectrics), liquids and atomic vapors. A typical research is initiated by defining novel concepts and ideas for state of the art devices, followed by the design and the nanofabrication of such devices, and all the way to their experimental characterization in the lab. Using these devices we explore fundamental phenomena in light-matter interactions. Such devices are also used for the demonstration of myriad applications in chip scale optical communication, memory, imaging, beam shaping, energy harvesting, biochemical sensing, and metrology.
 
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The Quantum Nano Engineering Laboratory

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The Quantum Nano
Engineering Laboratory
We develop room temperature operating quantum devices. Our study exploits our developed "nano-toolbox" that includes nano dots and organic molecules that link the dots to the device.
This methodology is aimed at producing a generic technology for constructing devices in which many nano-systems are interconnected, operate in unison, and are coupled without inhibiting their quantum nature. For example, using chiral molecules the electron spin is protected enabling long range transport. The suggested approach mimic quantum biology studies done in the group, of real biological systems.
The group have fully equipped and functioning lab combining transport, transport noise and optical measurements.
 
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Advanced Imaging Lab

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Advanced Imaging
Lab
The research in our group is focused on the development of advanced imaging and sensing techniques in complex media. Our goal is to develop novel approaches that would allow non-invasive imaging deep inside the human body, imaging and sensing through fog, and through miniature fibers. Our breakthroughs are enabled by the unique digital combination of light, ultrasound, and advanced computational techniques for image reconstruction from vast amount of unique datasets.

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Photonic Devices Lab

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Photonic Devices
Lab
We investigate ways of increasing capacity and improving efficiency of fiber-optic communication systems, in support of society’s growing information consumption. Our innovations at the photonic device level are based on guided-light, on-chip structures (photonic integrated circuits designed for dedicated tasks, just like electronic integrated circuits), on optical free-space sub-assemblies (using lenses, diffraction gratings, phase masks, etc.), and their combination. Such devices and sub-systems assist in managing communication traffic in complex optical networks, as those supporting the Internet traffic and at warehouse-scale datacenters (‘the cloud’). Our engineering toolbox includes: employing all optical degrees of freedom (time, frequency, phase, polarization, and space), two and three-dimensional nanoscale fabrication modalities, materials with requisite properties including electro-optic and nonlinear characteristics and their utilization, mechanical motion using MEMS technology.
 
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Quantum Sensors Lab

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Quantum Sensors
Lab
What do we do? We study the physics and applications of tiny measurement machines who "ticks" are dictated by the quantum properties of atoms. The lab explores the foundation building blocks of quantum-sensors with a strong emphasis on time and frequency applications and disciplines. We will answer questions such as how do atoms behave when confined to small dimensions? How atoms interact with and through walls? How does comb-light strongly interact with atomic medium? As such we will develop and explore new types of atomic clocks, magnetometers and electric-field sensors using microcomb light, “smart” atomic vapor cells and Nano-scale technology.
 
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The Soft Matter Laboratory

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The Soft Matter
Laboratory
The research interests of the laboratory are centered on the area of soft condensed matter physics for investigation of the structure, dynamics, and macroscopic behavior of complex systems. (CS). CS is a very broad and general class of materials, which include associated liquids, polymers, biomolecules, colloids, porous materials and liquid crystals.
The dynamical processes occurring in Complex Systems involve different length and time scales. Fast as well as ultra-slow molecular rearrangements take place in the presence of the microscopic, mesoscopic and macroscopic organization of the systems. Commonly, the complete characterization of these relaxation behaviors requires the use of variety techniques in order to span the relevant ranges in frequency. In this view, the use of Dielectric Spectroscopy (DS) is very advantageous
 

 

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Ultrafast laser lab

gilad
Ultrafast
laser lab
For many years, the low flux and the relatively low photon energies of attosecond light sources (high harmonics) limits the scope of applications to a small fraction of what would be feasible and of interest for advancing a wide range of fields in science and technology. We are following two routs towards improving the high harmonics intensity. The first is to use a power 20 terawatt laser in a loose focusing geometry to generate the harmonics. The second rout is to use Fano resonances to enhance the harmonic yield. On top of yield improvement, this mechanism contains an interesting many-body physics which we also studying. Other running projects are the generation of Tsunami like plasma waves through the process of autoresonance and the development of new type of femtosecond lasers in the infrared spectra range.

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