Results 41 to 50 of about 41,696 (201)

Keldysh Field Theory for Driven Open Quantum Systems

, 2016
Recent experimental developments in diverse areas - ranging from cold atomic gases over light-driven semiconductors to microcavity arrays - move systems into the focus, which are located on the interface of quantum optics, many-body physics and ...
Buchhold, M., Diehl, S., Sieberer, L. M.
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

One-Dimensional Transport of Ultracold Bosons

, 2019
Advances in cooling and trapping of atoms have enabled unprecedented experimental control of many-body quantum systems. This led to the observation of numerous quantum phenomena, important for fundamental science, indispensable for high-precision ...
Lerner, Igor V.
core  

Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon

Advanced Materials, EarlyView.
The selective hydrogenation of acetylene over laterally condensed Pd and Pd–Au catalysts (LCCs) was investigated using operando X‐ray absorption and photoelectron spectroscopy in combination with density functional theory. Pd‐LCCs were found to incorporate significantly more carbon into the metal lattice than Pd–Au LCCs, where the carbon uptake governs
Eylül Öztuna, Thomas Götsch, Daniel Cruz, Patrick Zeller, Olga V. Vinogradova, Zehua Li, Christian Rohner, Franz‐Philipp Schmidt, Zahra Gheisari, Alexander Steigert, Martin Muske, Michael Hävecker, Eugen Stotz, Iryna Antonyshyn, Frank Girgsdies, Olaf Timpe, Thomas Lunkenbein, Vanessa J. Bukas, Karsten Reuter, Robert Schlögl, Katarzyna Skorupska, Axel Knop‐Gericke, Beatriz Roldán Cuenya   +22 more
wiley   +1 more source

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

Advanced Materials, EarlyView.
ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez, Ignacio Sardinero, Jorge Cuadra, Alfredo Spuri, José A. Moreno, Hermann Suderow, Elke Scheer, Pablo Burset, Angelo Di Bernardo, Rubén Seoane Souto, Eduardo J. H. Lee   +10 more
wiley   +1 more source

Topological Quantum Phase Transition in Synthetic Non-Abelian Gauge Potential

, 2013
The method of synthetic gauge potentials opens up a new avenue for our understanding and discovering novel quantum states of matter. We investigate the topological quantum phase transition of Fermi gases trapped in a honeycomb lattice in the presence of ...
A Bermudez, A Bermudez, AH Castro Neto, AV Chubukov, BM Anderson, C-L Hung, D Xiao, F Wilczek, G Montambaux, J Dalibard, J Kinast, J Ye, J Ye, J Ye, J Ye, J Ye, J Ye, J Ye, J Ye, J Ye, J Ye, J Ye, JD Sau, JT Stewart, K Seo, L Jiang, L Jiang, L Mazza, L Tarruell, MAH Vozmediano, MJH Ku, MV Berry, MZ Hasan, N Gemelke, P Soltan-Panahi, X-J Liu, XL Qi, Y Chen, YJ Lin, YJ Lin, YJ Lin, YJ Lin   +41 more
core   +1 more source

Scalable, Bottom‐Up Synthesis of Transition Metal–Doped Quantum Confined, 1D Titanate‐Based Lepidocrocite Nanofilaments, Their Electronic Structures and Oxygen Evolution Reactivity

Advanced Materials Interfaces, EarlyView.
Quantum‐confined lepidocrocite titanate nanofilaments are doped, bottom‐up, with Mn+2, Fe+2, Co+2, Ni+2, and Cu+2 to tune electronic structure and catalysis. Doping narrows the bandgap—by up to ∼0.8 eV—and extends visible absorption. Ni‐doped filaments accelerate oxygen evolution (319 mV at 10 mA cm−2) and TM‐doped samples rapidly degrade rhodamine 6G (
Mohamed A. Ibrahim, Devraj Singh, Aidan McMoil, Mary Qin Hassig, Raja Janani, Joshua D. Snyder, Michel W. Barsoum   +6 more
wiley   +1 more source

Topological transition between competing orders in quantum spin chains

, 2018
We study quantum phase transitions between competing orders in one-dimensional spin systems. We focus on systems that can be mapped to a dual-field double sine-Gordon model as a bosonized effective field theory.
Furuya, Shunsuke C., Giamarchi, Thierry, Takayoshi, Shintaro   +2 more
core   +2 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Probing an Ultracold-Atom Crystal with Matter Waves

, 2012
Atomic quantum gases in optical lattices serve as a versatile testbed for important concepts of modern condensed-matter physics. The availability of methods to characterize strongly correlated phases is crucial for the study of these systems. Diffraction
Gadway, Bryce, Pertot, Daniel, Reeves, Jeremy, Schneble, Dominik   +3 more
core   +1 more source