Harvard Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138, USA Department of Physics, Harvard University, 60 Garden Street, Cambridge, Massachusetts 02138, USA Department of EECS and RLE, Massachusetts Institute of Technology, Massachusetts Avenue, Massachusetts 02139, USA Idesta Quantum Electronics LLC, 56 Sparta Ave., Newton, New Jersey 07860, USA Center fo...

Ian Counts, Dorian Gangloff, Alexei Bylinskii, Joonseok Hur, Rajibul Islam, and Vladan Vuletić1,∗ Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA Cavendish Laboratory, JJ Thompson Ave, Cambridge CB3 0HE, UK Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA...

M. Liertzer, ∗ Li Ge, A. Cerjan, A. D. Stone, H. E. Türeci, 4 and S. Rotter † Institute for Theoretical Physics, Vienna University of Technology, A-1040 Vienna, Austria, EU Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA Institute for Quantum Electronics, ETH-Zürich, CH...

Molecular electronics offers unique scientific and technological possibilities, resulting from both the nanometre scale of the devices and their reproducible chemical complexity. Two fundamental yet different effects, with no classical analogue, have been demonstrated experimentally in single-molecule junctions: quantum interference due to competing electron transport pathways, and the Kondo ef...

Hannes Pichler, Guanyu Zhu, Alireza Seif, Peter Zoller, and Mohammad Hafezi ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria Joint Quantum Institute, NIST/University ...

Quantum point contacts are cornerstones of mesoscopic physics and central building blocks for quantum electronics. Although the Fermi wavelength in high-quality bulk graphene can be tuned up to hundreds of nanometres, the observation of quantum confinement of Dirac electrons in nanostructured graphene has proven surprisingly challenging. Here we show ballistic transport and quantized conductanc...

Electrons in materials with linear dispersion behave as massless Weyl- or Dirac-quasiparticles, and continue to intrigue due to their close resemblance to elusive ultra-relativistic particles as well as their potential for future electronics. Yet the experimental signatures of Weyl-fermions are often subtle and indirect, in particular if they coexist with conventional, massive quasiparticles. H...

A strong interaction between light and a magnet can produce a hybrid system with energy levels distinct from either the light or the magnet on its own. In this “strong coupling” regime, quantum information can be easily transferred from the light to the magnet and vice versa. This feature could be useful in quantum information technologies or as a way to use one component (say, the light) to pr...

Controlling the nature of the electronic states within organic layers holds the promise of truly molecular electronics. To achieve that we, here, develop a modular concept for a versatile tuning of electronic properties in organic monolayers and their interfaces. The suggested strategy relies on directly exploiting collective electrostatic effects, which emerge naturally in an ensemble of polar...

Quantum cellular automata (QCA) is an innovative approach that incorporates quantum entities in classical computation processes. Binary information is encoded in different charge states of the QCA cells and transmitted by the inter-cell Coulomb interaction. Despite the promise of QCA, however, it remains a challenge to identify suitable building blocks for the construction of QCA. Graphene has ...