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Tag: Quantum

Toward mass-producible quantum computers

Quantum computers are experimental devices that offer large speedups on some computational problems. One promising approach to building them involves...

Sandwiched between superconductors, graphene adopts exotic electronic states

In normal conductive materials such as silver and copper, electric current flows with varying degrees of resistance, in the form...

From football to physics

Zachary Hulcher was once set on becoming a lawyer. In high school, he took part in mock trials and competed...

General Green’s function formalism for layered systems: Wave function approach

The single-particle Green's function (GF) of mesoscopic structures plays a central role in mesoscopic quantum transport. The recursive GF technique is a standard...

Interaction effects in a chaotic graphene quantum billiard

We investigate the local electronic structure of a Sinai-like, quadrilateral graphene quantum billiard with zigzag and armchair edges using scanning tunneling microscopy (STM)...

Entanglement bonanza

Quantum computers promise huge speedups on some computational problems because they harness a strange physical property called entanglement, in which...

Crossover to the anomalous quantum regime in the extrinsic spin Hall effect of graphene

Recent reports of spin-orbit coupling enhancement in chemically modified graphene have opened doors to studies of the spin Hall effect with massless chiral...

Scientists set traps for atoms with single-particle precision

Atoms, photons, and other quantum particles are often capricious and finicky by nature; very rarely at a standstill, they often...

Origin and Magnitude of ‘Designer’ Spin-Orbit Interaction in Graphene on Semiconducting Transition Metal Dichalcogenides

In recent years, researchers have successfully produced an array of crystalline materials only one or a few atoms thick with nearly perfect structure....

Tuning the Optically Bright and Dark States of Doped Graphene Quantum Dots

Employing a combination of the many-body configuration-interaction method described by an extended Hubbard model and first-principles calculations, we predict the emergence of high...

For first time, researchers see individual atoms keep away from each other or bunch up as pairs

If you bottle up a gas and try to image its atoms using today’s most powerful microscopes, you will see...

Erratum: Quantum superconducting criticality in graphene and topological insulators [Phys. Rev. B 87, 041401(R) (2013)]

COVID-19 has impacted many institutions and organizations around the world, disrupting the progress of research. Through this difficult time APS and the Physical...

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