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http://dx.doi.org/10.1002/anie.201301539 | DOI Listing |
Ann Surg Oncol
January 2025
Department of Radiology, MedStar Georgetown University Hospital, Washington, DC, USA.
Nat Commun
December 2024
Department of Physics, Queens College of the City University of New York, Flushing, New York, 11367, USA.
The quantum conductance and its classical wave analogue, the transmittance, are given by the sum of the eigenvalues of the transmission matrix. However, neither measurements nor theoretical analysis of the transmission eigenchannels have been carried out to explain the dips in conductance found in simulations as new channels are introduced. Here, we measure the microwave transmission matrices of random waveguides and find the spectra of all transmission eigenvalues, even at dips in the lowest transmission eigenchannel that are orders of magnitude below the noise in the transmission matrix.
View Article and Find Full Text PDFJ Vasc Interv Radiol
November 2024
Department of Diagnostic and Interventional Radiology, St. James's University Hospital, Beckett Street, Leeds LS9 7TF, United Kingdom.
Nature
November 2024
Department of Physics, Stanford University, Stanford, CA, USA.
The fractional quantum Hall effect is a key example of topological quantum many-body phenomena, arising from the interplay between strong electron correlation, topological order and time-reversal symmetry breaking. Recently, a lattice analogue of the fractional quantum Hall effect at zero magnetic field has been observed, confirming the existence of a zero-field fractional Chern insulator (FCI). Despite this, the bulk-edge correspondence-a hallmark of a FCI featuring an insulating bulk with conductive edges-has not been directly observed.
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