260 citations · 2.1k across the 54 of their papers we have counts for
6 papers · 1 filter
Clock-controlled emission of single-electron wavepackets in a solid-state circuit
J. D. Fletcher, M. Kataoka, H. Howe +8
We demonstrate the transmission of single electron wavepackets from a clock-controlled source through an empty high-energy edge channel. The quantum dot source is loaded with singl…
Gigahertz quantized charge pumping in graphene quantum dots
M. R. Connolly, K. L. Chiu, S. P. Giblin +8
Single electron pumps are set to revolutionize electrical metrology by enabling the ampere to be re-defined in terms of the elementary charge of an electron. Pumps based on lithogr…
Unconventional Metallicity and Giant Thermopower in a Strongly Interacting Two Dimensional Electron System
Vijay Narayan, Srijit Goswami, Michael Pepper +6
We present thermal and electrical transport measurements of low-density (10 m), mesoscopic two-dimensional electron systems (2DESs) in GaAs/AlGaAs heterostructures at…
Unraveling quantum Hall breakdown in bilayer graphene with scanning gate microscopy
M. R. Connolly, R. K. Puddy, D. Logoteta +7
We use low-temperature scanning gate microscopy (SGM) to investigate the breakdown of the quantum Hall regime in an exfoliated bilayer graphene flake. SGM images captured during br…
On-chip single photon emission from an integrated semiconductor quantum dot into a photonic crystal waveguide
Andre Schwagmann, Sokratis Kalliakos, Ian Farrer +4
We demonstrate the in-plane emission of highly-polarized single photons from an InAs quantum dot embedded into a photonic crystal waveguide. The spontaneous emission rates are Purc…
Towards a quantum representation of the ampere using single electron pumps
S. P. Giblin, M. Kataoka, J. D. Fletcher +6
Electron pumps generate a macroscopic electric current by controlled manipulation of single electrons. Despite intensive research towards a quantum current standard over the last 2…