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Research Areas

prx2_041002_2012

Non Abelian Topological Systems

A fascinating property of many topological phases are collective fractionalized excitations which are highly non-local in nature. These carry fractions of the quantum numbers of the underlying microscopic degrees of freedom; e.g., they can carry fractions of the electron charge. In two spatial dimensions, such emergent excitations can have exotic exchange rules, which are different from those of either bosons or fermions. Most intriguingly, certain topological systems can support “non-Abelian” excitations, whose exchange rules are described by non-commuting matrices. Read More

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Topological Phenomena in Non-equilibrium Systems

The efforts to realize new topological phases have focused mostly on equilibrium systems at zero temperature. The exciting possibility of realizing topological phenomena in out-of-equilibrium systems has been recently proposed in the context systems subjected to periodic external driving forces. A major advantage of this setup is the wider range of experimental controls it allows, and new types of accessible topological states. An intriguing example is the proposal that a non-topological material subject to electromagnetic radiation can have properties that mimic those of a topological insulator; this may open a completely new route to exploring topological phases, which are not accessible in equilibrium setups. Read More
PNAS108_19925_2011

Transport in Strongly Corelated Systems

Materials exhibiting strong electron-electron interactions pose some of the most outstanding puzzles in condensed matter physics. Notable examples are the cuprate high-temperature superconductors and heavy fermion metals. Transport measurements, and specifically the electronic conductivity tensor, are perhaps one of the most accessible probes for studying the properties of these materials. These measurements often reveal surprising results, which are challenging to explain theoretically. Read More
prl96_130501_2006

Semiconductor sources for Photonic Quantum Computing

Photonics has emerged as an arena which holds great potential for realizing a quantum computer. The advanced technology of optical circuits allows for precision measurements and manipulations which are a crucial ingredient in any realization. More importantly, since photons are very weakly interacting, they have little sensitivity to decoherence, which poses a major challenge in most other implementations. The primary challenge facing optical quantum computation is that of building suitable photon sources.  Read More

Contact

email: lindner@physics.technion.ac.il

Tel: +972-4-8292803

Mail address: Physics Department

Technion – Israel Institute of Technology

Haifa, 3200000, Israel

 

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