COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |
University of Cambridge > Talks.cam > Semiconductor Physics Group Seminars > Single electron pumping: Current accounting and electron partitioning
Single electron pumping: Current accounting and electron partitioningAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Teri Bartlett. Pumping transport mechanisms have attracted much interest as an alternative means to generate a directed current independent of a bias voltage. The current results from periodic modulation of certain system parameters of a nanostructure connected to source and drain leads. Of particular interest is the quantized regime where exactly one or two electrons are emitted in each period. Dynamic semiconductor quantum dots with tunable barriers are among the most promising candidates: On the one hand they can produce quantized charge currents even at GHz driving frequency which is of great interest for electrical metrology. On the other hand they can be integrated with one dimensional ballistic conductors formed at the edge of a quantum Hall system, opening the route to electron optics experiments. In this talk I will present different experiments touching both aspects: Concerning metrology I will show how electron counting techniques can be used not only to characterize the quantized electron pumps but also to correct errors related to the statistical properties of the single electron source. Towards electron quantum optics and quantum information applications I will present the results of a Hanbury Brown Twiss type correlation experiment for single electrons and electron pairs emitted into a one dimensional ballistic conductor and partitioned at a potential barrier. This talk is part of the Semiconductor Physics Group Seminars series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsMadingley Lunchtime Seminars Global Student Education Forum (GSEF) Talk Series Cambridge Network Sales & Marketing SIG CU Global Health Cambridge Natural History Society Cambridge Network Sales & Marketing SIGOther talksThe Digital Doctor: Hope, Hype, and Harm at the Dawn of Medicine’s Computer Age An African orient? West Africans in World War Two India, 1943-1947 Putting Feminist New Materialism to work through affective methodologies in early childhood research Rather more than Thirty-Nine Steps: the life of John Buchan Tunable Functional Magnetic Skyrmions at Room Temperature Observation of photon antibunching from a potential SAW-driven single-photon source A new proposal for the mechanism of protein translocation Understanding mechanisms and targets of malaria immunity to advance vaccine development Knot Floer homology and algebraic methods To be confirmed Climate Change Uncertainty, Adaptation, and Growth |