作者：[Anonymous]
摘要：Pandemic treaty is a rare opportunity to ensure pandemic-related technologies are accessible and affordable to all.
作者：Eklof, Johan S.
作者单位：Stockholm University
摘要：Conservation is bringing back certain predators that are high in the food chain, but how this affects an ecosystem overall is debated. Rigorous fieldwork provides strong evidence that sea otters help to mitigate coastal erosion.
作者：Uzan-Narovlansky, Ayelet J.; Faeyrman, Lior; Brown, Graham G.; Shames, Sergei; Narovlansky, Vladimir; Xiao, Jiewen; Arusi-Parpar, Talya; Kneller, Omer; Bruner, Barry D.; Smirnova, Olga; Silva, Rui E. F.; Yan, Binghai; Jimenez-Galan, Alvaro; Ivanov, Misha; Dudovich, Nirit
作者单位：Weizmann Institute of Science; Princeton University; Leibniz Association; Max Born Institute for Nonlinear Optics & Short Term Spectroscopy; Princeton University; Weizmann Institute of Science; Technical University of Berlin; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Instituto de Ciencia de Materiales de Madrid (ICMM); Imperial College London; Humboldt University of Berlin
摘要：Ever since its discovery1, the notion of the Berry phase has permeated all branches of physics and plays an important part in a variety of quantum phenomena2. However, so far all its realizations have been based on a continuous evolution of the quantum state, following a cyclic path. Here we introduce and demonstrate a conceptually new manifestation of the Berry phase in light-driven crystals, in which the electronic wavefunction accumulates a geometric phase during a discrete evolution betwee...
作者：Morgado, B. E.; Sicardy, B.; Braga-Ribas, F.; Ortiz, J. L.; Salo, H.; Vachier, F.; Desmars, J.; Pereira, C. L.; Santos-Sanz, P.; Sfair, R.; de Santana, T.; Assafin, M.; Vieira-Martins, R.; Gomes-Junior, A. R.; Margoti, G.; Dhillon, V. S.; Fernandez-Valenzuela, E.; Broughton, J.; Bradshaw, J.; Langersek, R.; Benedetti-Rossi, G.; Souami, D.; Holler, B. J.; Kretlow, M.; Boufleur, R. C.; Camargo, J. I. B.; Duffard, R.; Beisker, W.; Morales, N.; Lecacheux, J.; Rommel, F. L.; Herald, D.; Benz, W.; Jehin, E.; Jankowsky, F.; Marsh, T. R.; Littlefair, S. P.; Bruno, G.; Pagano, I.; Brandeker, A.; Collier-Cameron, A.; Floren, H. G.; Hara, N.; Olofsson, G.; Wilson, T. G.; Benkhaldoun, Z.; Busuttil, R.; Burdanov, A.; Ferrais, M.; Gault, D.; Gillon, M.; Hanna, W.; Kerr, S.; Kolb, U.; Nosworthy, P.; Sebastian, D.; Snodgrass, C.; Teng, J. P.; de Wit, J.
作者：Terhal, Barbara M.
作者单位：Delft University of Technology
摘要：Small groups of mobile neutral atoms have been manipulated with extraordinary control to form 'logical' quantum bits. These qubits can perform quantum computations more reliably than can individual atoms.
