visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-07-28 16:00 
연사  
장소 #1323(E6-2. 1st fl.) 

Low Dimensional Electrons: On the Road to Hybrid Quantum Systems

 

Jul. 28 (Thu.) 4PM, #1323(E6-2. 1st fl.)

Prof. Johannes Pollanen, Jerry Cowen Chair of Experimental Physics at Michigan State University

 

Creating and controlling novel quantum states of matter is at the forefront of modern condensed matter physics. I will discuss two examples of this paradigm from my experiences studying two-dimensional(2d) electron systems. First, I will describe experiments on a class of 2d liquid crystalline states existing in semiconductor heterostructures. These fascinating states, known as quantum Hall nematics, exhibit a mysterious broken rotational symmetry in the 2d plane. We have found that engineering the device structure can experimentally control this symmetry; thereby demonstrating a unique technique for manipulating the orientation of these exotic quantum states. In the second part of my talk I will describe how high frequency surface acoustic waves(SAW) can be used to elucidate the properties of electronic states in two dimensions. Our recent experiments reveal the presence of a metastable conducting phase in the interior of a quantum Hall state. Finally, I will briefly remark on our efforts at the LHQS to create hybrid quantum systems composed of free electrons floating on the surface of liquid helium coupled to nanoscale structures or topological states of matter. These systems provide a unique platform for studying the fundamental physics of low dimensional electrons and their potential quantum computing applications.

 

Contact: CULTure Lab (h.choi@kaist.ac.kr)

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
346 2018-03-16 16:00    Van der Waals Heterostructures from Quantum Transport to Ultrafast Optoelectronics file
345 2018-03-16 16:00    Van der Waals Heterostructures from Quantum Transport to Ultrafast Optoelectronics file
344 2015-11-06 16:30    Topological Dirac line nodes in centrosymmetric semimetals
343 2019-04-19 14:30    A family of finite-temperature electronic phase transitions in graphene multilayers file
342 2019-11-01 14:30    Squeezing the best out of 2D materials file
341 2017-09-26 11:00    Time-resolved ARPES study of Dirac and topological materials
340 2016-04-08 13:30    Theoretical Overview of Iron-based superconductors and its future
339 2019-06-28 13:30    Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures file
338 2016-10-27 16:00    Terahertz Metal Optics
337 2016-11-18 10:30    Non-equilibrium many-body spin dynamics in diamond
336 2022-09-15 13:00    AdS black holes: a review
335 2022-05-18 16:00    Geometry, Algebra, and Quantum Field Theory
334 2022-05-19 16:00    Chasing Long Standing Neutrino Anomalies with MicroBooNE
333 2022-05-12 16:00    New frontiers of electroweak physics at the LHC
332 2024-01-16 16:00    [High Energy Theory Seminar] Towards quantum black hole microstates
331 2024-10-21 13:00    [Physics Seminar] “Non-Hermitian Point-Gap Topology in Junction Systems” file
330 2024-10-14 11:00    [RSVP, Oct 14th Mon] Ambassador of Hungary to Republic of Korea Special Lecture file
329 2019-12-27 15:00    The superconducting order parameter puzzle of Sr2RuO4 file
328 2019-12-27 15:00    The superconducting order parameter puzzle of Sr2RuO4 file
327 2019-09-26 16:00    Entanglement Swapping with Autonomous Polarization-Entangled Photon-Pairs from Warm Atomic Ensemble file