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News
November 7, 2016
1 min read

Anomalous Fraunhofer Interference in Epitaxial Superconductor-Semiconductor Josephson Junctions

Last year saw a materials breakthrough, with the realization of a two-dimensional heterostructure combining superconductor and semiconductor layers.

News
September 28, 2016
1 min read

Verified compilation of space-efficient reversible circuits

Generation of reversible circuits from high-level code is an important problem in the compilation flow of quantum algorithms to lower-level hardware.

News
September 20, 2016
1 min read

Double semions in arbitrary dimension

In the paper, “Double semions in arbitrary dimension,” published in Communications in Mathematical Physics, Michael Freedman and Matthew Hastings present a new construction of topological phases of matter in higher dimensions, generalizing the double semion theory in two dimensions.

News
August 30, 2016
1 min read

Topological Phases in InAs1−x Sbx : From Novel Topological Semimetal to Majorana Wire

In this paper, we show by computer simulations that a new material, which is a specific combination of the two semiconductors InAs and InSb (both are currently used in experimental setups on Majorana zero modes), has vastly improved properties compared to InAs or InSb alone, making it ideally suited for future devices.

News
August 30, 2016
1 min read

Training a quantum optimizer

In this paper, published in Physical Review A, we show how to greatly improve success at solving Constraint Satisfaction Problems on a quantum computer by using a learned schedule, instead of the standard linear ramps.

News
August 4, 2016
1 min read

Triple point topological metals

Topological materials can yield quasiparticles that behave in a manner similar to elementary particles that are part of the standard model of particle physics.

News
June 20, 2016
1 min read

Conductance of a proximitized nanowire in the Coulomb blockade regime

In this paper, which was just published in Physical Review B, a quantitative theory for the two-terminal conductance of a proximitized nanowire in the Coulomb blockade regime is developed.