Speaker: Dr. Kenan Gundogdu, MSE | Materials Science and Engineering Speaker: Dr. Kenan Gundogdu, MSE | Materials Science and Engineering

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Speaker: Dr. Kenan Gundogdu, MSE

October 29 @ 11:00 am - 12:00 pm

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“Macroscopic Quantum Phenomena at Room Temperature”

Abstract: As the demand for quantum approaches in computing, communication and cryptology is increasing, the need for discovering new “quantum materials” is at an unprecedented level. Quantum coherence, i.e., the phase stability of a superposition state, is the fundamental requirement for quantum applications. For instance, a key requirement for quantum materials for quantum computing applications is a long-lived coherence, i.e., long dephasing times, which can currently only be achieved at mK temperatures, limiting the use of these materials to cryogenic conditions. In fact, coherence is one of the most important requirements for observing quantum phenomena. For example, superconducting materials used for quantum computers require an extremely low temperature operation, and superconductivity, similar to other macroscopic phase transitions, such as superfluorescence and Bose-Einstein condensation, is a symmetry breaking process that requires a collective phase in an ensemble. Therefore, these phenomena are only observed at cryogenic conditions. Since quantum phase is extremely fragile due to thermal scattering events, are thermal processes really a fundamental roadblock for designing quantum materials with extended coherence? Here I will present our recent discovery of high temperature superfluorescence in hybrid perovskites. Superfluoresence similar to Bose-Einstein condensation and superconductivity, is a macroscopic quantum phenomenon. It was previously only observed at cryogenic conditions. Our observation of room temperature superfluorescence can be the key for designing materials with extended quantum coherence and discovering materials for emerging quantum applications.

Bio:  Professor Gundogdu got his BS degree in Physics at Bogazici University in Turkey in 1999.  He completed his PhD at the University of Iowa Physics Department.  His first postdoctoral position was in the University of Iowa Chemistry Department and the second was in Massachusetts Institute of Technology Chemistry Department.   At 2008 Prof. Gundogdu joined the NC State University physics department.  His research focuses on optimal and electronic processes in condensed matter using ultrafast and nonlinear optical spectroscopy.


October 29
11:00 am - 12:00 pm
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EB1 – Room 1011
911 Partners Way
Raleigh, NC 27695-7907 United States


MSE Department
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Dr. Kenan Gundogdu
Dr. Donald Brenner