Tunable quantum interference

Kevin Uhl, Daniel Hackenbeck, Christoph Füger +3 more

This contains the data and processing scripts used for the figures of the manuscript and supplementary material of "A flux-tunable YBa2Cu3O7 quantum interference microwave circuit", published as Applied Physics Letters 122, 000000 (2023); doi: 10.1063/5.0146524.

Ivars Peterson

John R. Serafini, Matthew van Niekerk, Michael L. Fanto +1 more

We successfully demonstrate tunable quantum interference between two micro-ring sources on a silicon photonic chip. Additionally, we show that the visibility can be optimized based on the tunable coupling to the integrated sources.

David S. Simon

Yuanzhen Chen, Samir Garzon, R. A. Webb

We report shot noise cross correlation measurements in a four terminal beam splitter configuration. By using two tunnel barriers as independent electron sources with tunable statistics and energy, we can adjust the degree of quantum interference that results when the electrons scatter at a beam splitter. Even though quantum interference is only weakly affected by noise, it can be strongly suppressed by detuning the energies of the interfering electrons. Our results illustrate the importance of indistinguishability for quantum interference, and its resilience to unsynchronized electron sources and noise.

Robert B. Griffiths