Results 41 to 50 of about 57,735 (231)

Harnessing the GaAs quantum dot nuclear spin bath for quantum control

, 2010
We theoretically demonstrate that nuclear spins can be harnessed to coherently control two-electron spin states in a double quantum dot. Hyperfine interactions lead to an avoided crossing between the spin singlet state and the ms = +1 triplet state, T_+ .
Burkard, Guido, Petta, J. R., Ribeiro, Hugo   +2 more
core   +1 more source

Theory of Spin Relaxation in Two-Electron Lateral Coupled Quantum Dots [PDF]

, 2012
A global quantitative picture of the phonon-induced two-electron spin relaxation in GaAs double quantum dots is presented using highly accurate numerical calculations.
Baruffa, Fabio, Fabian, Jaroslav, Raith, Martin, Stano, Peter   +3 more
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Evolution of Quantum Discord and its Stability in Two-Qubit NMR Systems

, 2012
We investigate evolution of quantum correlations in ensembles of two-qubit nuclear spin systems via nuclear magnetic resonance techniques. We use discord as a measure of quantum correlations and the Werner state as an explicit example. We first introduce
Apoorva Patel, Hemant Katiyar, I. S. Oliveira, M. H. Levitt, Soumya Singha Roy, T. S. Mahesh   +5 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Magnetic and superconducting properties on S-type single-crystal CeCu$_2$Si$_2$ probed by $^{63}$Cu nuclear magnetic resonance and nuclear quadrupole resonance [PDF]

, 2017
We have performed $^{63}$Cu nuclear magnetic resonance/nuclear quadrupole resonance measurements to investigate the magnetic and superconducting (SC) properties on a "superconductivity dominant" ($S$-type) single crystal of CeCu$_2$Si$_2$.
Geibel, C., Higuchi, T., Ishida, K., Jeevan, H. S., Kitagawa, S., Manago, M., Yamanaka, T.   +6 more
core   +2 more sources

Side‐Chains Engineered Self‐Assembly of Ortho‐Benzodipyrrole‐Based Acceptors: Comprehensive Exploration of Structure‐Interface‐Photovoltaics Correlations

Advanced Functional Materials, EarlyView.
The side‐chain configuration in the bay region of C‐shaped ortho‐benzodipyrrole‐based non‐fullerene acceptors plays a crucial role in their self‐assembly, single‐crystal structures, and optoelectronic properties. The closely correlated molecular structure and performance underscore the importance of minimizing A–A self‐aggregation and enhancing D–A ...
Yung‐Jing Xue, Chen‐Yu Chang, Chieh‐Ming Hung, Chi‐Chun Tseng, Je‐Wei Chang, Chun‐Jen Su, Chia‐Lin Tsai, Han‐Cheng Lu, Kuo‐Hsiu Huang, Kuei‐Yu Tai, Chien‐Yi Ku, Chia‐Shing Wu, Su‐Ying Chien, Shang‐Da Yang, Bing‐Huang Jiang, Chih‐Ping Chen, Pi‐Tai Chou, U‐Ser Jeng, Yen‐Ju Cheng   +18 more
wiley   +1 more source

$^{119}$Sn-NMR investigations on superconducting Ca$_3$Ir$_4$Sn$_{13}$: Evidence for multigap superconductivity

, 2014
We report bulk superconductivity (SC) in Ca$_3$Ir$_4$Sn$_{13}$ by means of $^{119}$Sn nuclear magnetic resonance (NMR) experiments. Two classical signatures of BCS superconductivity in spin-lattice relaxation rate ($1/T_1$), namely the Hebel-Slichter ...
Amato, A., Biswas, P. K., Brückner, F., Günther, M., Klauss, H-H., Luetkens, H., Morenzoni, E., Petrovic, C., Sarkar, R., Wang, Kefeng   +9 more
core   +1 more source

Excited State Modulation in Carbene‐Metal‐Amides to Design Fast and Bright Blue Delayed Fluorescence

Advanced Functional Materials, EarlyView.
Gold‐centered carbene‐metal amide (CMA) materials with carbonyl‐group substitution on the amide donor ligand. Molecular design ensures that the charge transfer (CT) state is lower in energy than the locally excited (3LE) states. The energy difference between CT and LE states controls the rate of the delayed fluorescence.
Charlotte Riley, Nguyen Le Phuoc, Mikko Linnolahti, Alexander S. Romanov   +3 more
wiley   +1 more source

Wavefunction considerations for the central spin decoherence problem in a nuclear spin bath

, 2008
Decoherence of a localized electron spin in a solid state material (the ``central spin'' problem) at low temperature is believed to be dominated by interactions with nuclear spins in the lattice.
A. Abragam, C. Kittel, C. P. Slichter, G. M. Zhidomirov, J. M. Taylor, P. W. Anderson, R. Winkler, S. Das Sarma, W. B. Mims, W. M. Witzel   +9 more
core   +1 more source