On May 20th, 2019, the world celebrates World Metrology Day. Although an annual celebration, this year in particular stands out from the rest as it opens a new era of precision in physics. Starting today, all seven base units of the International System of Units (SI)...

#### Electric Field Writing of Ferroelectric Nanodomains

The local conductivity in bismuth ferrite thin films with well-ordered domain walls.

#### Curvature Changes Quantization Procedure

A theoretical puzzle has existed for over half a century: how to perform quantization for a particle constrained to remain on the curved surface with Dirac’s canonical quantization scheme? The answer has been found.

#### Quantum System Thermalization: If and How?

An open problem of many-body physics, related to isolated quantum systems, is reviewed for a Bose-Einstein condensate.

#### Electroluminescence through Parellel Quantum Dots

Electroluminescence caused by the transport of interacting electrons through parallel quantum dots in a photon cavity is presented.

#### Nobel Prize in Physics: Detecting Gravitational Waves

A collision between two black holes allowed for the first detection of gravitational waves.

#### Artificially Stacked Bilayer CVD Graphene Field Effect Transistors

Performance enhancement in individual field effect transistors (FETs) fabricated using artificially stacked graphene double-layers (bilayers).

#### Determining Transport Properties of Complex Multiterminal Systems: S-matrix of general tight-binding periodic leads

A highly efficient method to determine the S-matrix of systems modeled by tight-binding Hamiltonians with general leads.

#### Digital Holography Steps into Industrial Applications

Digital holography transitions from laboratory into industrial applications (image credit: teekid/Getty Images).

#### Localization Properties of the Disordered XY Spin Chain

Researchers give a full account of results on localization properties for the Anderson model.