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Ecological insights from three decades of animal movement tracking across a changing Arctic 期刊论文
Science, 2020
Authors:  Sarah C. Davidson;  Gil Bohrer;  Eliezer Gurarie;  Scott LaPoint;  Peter J. Mahoney;  Natalie T. Boelman;  Jan U. H. Eitel;  Laura R. Prugh;  Lee A. Vierling;  Jyoti Jennewein;  Emma Grier;  Ophélie Couriot;  Allicia P. Kelly;  Arjan J. H. Meddens;  Ruth Y. Oliver;  Roland Kays;  Martin Wikelski;  Tomas Aarvak;  Joshua T. Ackerman;  José A. Alves;  Erin Bayne;  Bryan Bedrosian;  Jerrold L. Belant;  Andrew M. Berdahl;  Alicia M. Berlin;  Dominique Berteaux;  Joël Bêty;  Dmitrijs Boiko;  Travis L. Booms;  Bridget L. Borg;  Stan Boutin;  W. Sean Boyd;  Kane Brides;  Stephen Brown;  Victor N. Bulyuk;  Kurt K. Burnham;  David Cabot;  Michael Casazza;  Katherine Christie;  Erica H. Craig;  Shanti E. Davis;  Tracy Davison;  Dominic Demma;  Christopher R. DeSorbo;  Andrew Dixon;  Robert Domenech;  Götz Eichhorn;  Kyle Elliott;  Joseph R. Evenson;  Klaus-Michael Exo;  Steven H. Ferguson;  Wolfgang Fiedler;  Aaron Fisk;  Jérôme Fort;  Alastair Franke;  Mark R. Fuller;  Stefan Garthe;  Gilles Gauthier;  Grant Gilchrist;  Petr Glazov;  Carrie E. Gray;  David Grémillet;  Larry Griffin;  Michael T. Hallworth;  Autumn-Lynn Harrison;  Holly L. Hennin;  J. Mark Hipfner;  James Hodson;  James A. Johnson;  Kyle Joly;  Kimberly Jones;  Todd E. Katzner;  Jeff W. Kidd;  Elly C. Knight;  Michael N. Kochert;  Andrea Kölzsch;  Helmut Kruckenberg;  Benjamin J. Lagassé;  Sandra Lai;  Jean-François Lamarre;  Richard B. Lanctot;  Nicholas C. Larter;  A. David M. Latham;  Christopher J. Latty;  James P. Lawler;  Don-Jean Léandri-Breton;  Hansoo Lee;  Stephen B. Lewis;  Oliver P. Love;  Jesper Madsen;  Mark Maftei;  Mark L. Mallory;  Buck Mangipane;  Mikhail Y. Markovets;  Peter P. Marra;  Rebecca McGuire;  Carol L. McIntyre;  Emily A. McKinnon;  Tricia A. Miller;  Sander Moonen;  Tong Mu;  Gerhard J. D. M. Müskens;  Janet Ng;  Kerry L. Nicholson;  Ingar Jostein Øien;  Cory Overton;  Patricia A. Owen;  Allison Patterson;  Aevar Petersen;  Ivan Pokrovsky;  Luke L. Powell;  Rui Prieto;  Petra Quillfeldt;  Jennie Rausch;  Kelsey Russell;  Sarah T. Saalfeld;  Hans Schekkerman;  Joel A. Schmutz;  Philipp Schwemmer;  Dale R. Seip;  Adam Shreading;  Mónica A. Silva;  Brian W. Smith;  Fletcher Smith;  Jeff P. Smith;  Katherine R. S. Snell;  Aleksandr Sokolov;  Vasiliy Sokolov;  Diana V Solovyeva;  Mathew S. Sorum;  Grigori Tertitski;  J. F. Therrien;  Kasper Thorup;  T. Lee Tibbitts;  Ingrid Tulp;  Brian D. Uher-Koch;  Rob S. A. van Bemmelen;  Steven Van Wilgenburg;  Andrew L. Von Duyke;  Jesse L. Watson;  Bryan D. Watts;  Judy A. Williams;  Matthew T. Wilson;  James R. Wright;  Michael A. Yates;  David J. Yurkowski;  Ramūnas Žydelis;  Mark Hebblewhite
Favorite  |  View/Download:19/0  |  Submit date:2020/11/09
Highly porous nature of a primitive asteroid revealed by thermal imaging 期刊论文
NATURE, 2020, 579 (7800) : 518-522
Authors:  Quinn, Robert A.;  Melnik, Alexey, V;  Vrbanac, Alison;  Fu, Ting;  Patras, Kathryn A.;  Christy, Mitchell P.;  Bodai, Zsolt;  Belda-Ferre, Pedro;  Tripathi, Anupriya;  Chung, Lawton K.;  Downes, Michael;  Welch, Ryan D.;  Quinn, Melissa;  Humphrey, Greg;  Panitchpakdi, Morgan;  Weldon, Kelly C.;  Aksenov, Alexander;  da Silva, Ricardo;  Avila-Pacheco, Julian;  Clish, Clary;  Bae, Sena;  Mallick, Himel;  Franzosa, Eric A.;  Lloyd-Price, Jason;  Bussell, Robert;  Thron, Taren;  Nelson, Andrew T.;  Wang, Mingxun;  Leszczynski, Eric;  Vargas, Fernando;  Gauglitz, Julia M.;  Meehan, Michael J.;  Gentry, Emily;  Arthur, Timothy D.;  Komor, Alexis C.;  Poulsen, Orit;  Boland, Brigid S.;  Chang, John T.;  Sandborn, William J.;  Lim, Meerana;  Garg, Neha;  Lumeng, Julie C.;  Xavier, Ramnik J.;  Kazmierczak, Barbara, I;  Jain, Ruchi;  Egan, Marie;  Rhee, Kyung E.;  Ferguson, David;  Raffatellu, Manuela;  Vlamakis, Hera;  Haddad, Gabriel G.;  Siegel, Dionicio;  Huttenhower, Curtis;  Mazmanian, Sarkis K.;  Evans, Ronald M.;  Nizet, Victor;  Knight, Rob;  Dorrestein, Pieter C.
Favorite  |  View/Download:47/0  |  Submit date:2020/05/13

Carbonaceous (C-type) asteroids(1) are relics of the early Solar System that have preserved primitive materials since their formation approximately 4.6 billion years ago. They are probably analogues of carbonaceous chondrites(2,3) and are essential for understanding planetary formation processes. However, their physical properties remain poorly known because carbonaceous chondrite meteoroids tend not to survive entry to Earth'  s atmosphere. Here we report on global one-rotation thermographic images of the C-type asteroid 162173 Ryugu, taken by the thermal infrared imager (TIR)(4) onboard the spacecraft Hayabusa2(5), indicating that the asteroid'  s boulders and their surroundings have similar temperatures, with a derived thermal inertia of about 300 J m(-2) s(-0.5) K-1 (300 tiu). Contrary to predictions that the surface consists of regolith and dense boulders, this low thermal inertia suggests that the boulders are more porous than typical carbonaceous chondrites(6) and that their surroundings are covered with porous fragments more than 10 centimetres in diameter. Close-up thermal images confirm the presence of such porous fragments and the flat diurnal temperature profiles suggest a strong surface roughness effect(7,8). We also observed in the close-up thermal images boulders that are colder during the day, with thermal inertia exceeding 600 tiu, corresponding to dense boulders similar to typical carbonaceous chondrites(6). These results constrain the formation history of Ryugu: the asteroid must be a rubble pile formed from impact fragments of a parent body with microporosity(9) of approximately 30 to 50 per cent that experienced a low degree of consolidation. The dense boulders might have originated from the consolidated innermost region or they may have an exogenic origin. This high-porosity asteroid may link cosmic fluffy dust to dense celestial bodies(10).


Thermal imaging data obtained from the spacecraft Hayabusa2 reveal that the carbonaceous asteroid 162173 Ryugu is an object of unusually high porosity.


  
Experimental demonstration of memory-enhanced quantum communication 期刊论文
NATURE, 2020
Authors:  Quinn, Robert A.;  Melnik, Alexey, V;  Vrbanac, Alison;  Fu, Ting;  Patras, Kathryn A.;  Christy, Mitchell P.;  Bodai, Zsolt;  Belda-Ferre, Pedro;  Tripathi, Anupriya;  Chung, Lawton K.;  Downes, Michael;  Welch, Ryan D.;  Quinn, Melissa;  Humphrey, Greg;  Panitchpakdi, Morgan;  Weldon, Kelly C.;  Aksenov, Alexander;  da Silva, Ricardo;  Avila-Pacheco, Julian;  Clish, Clary;  Bae, Sena;  Mallick, Himel;  Franzosa, Eric A.;  Lloyd-Price, Jason;  Bussell, Robert;  Thron, Taren;  Nelson, Andrew T.;  Wang, Mingxun;  Leszczynski, Eric;  Vargas, Fernando;  Gauglitz, Julia M.;  Meehan, Michael J.;  Gentry, Emily;  Arthur, Timothy D.;  Komor, Alexis C.;  Poulsen, Orit;  Boland, Brigid S.;  Chang, John T.;  Sandborn, William J.;  Lim, Meerana;  Garg, Neha;  Lumeng, Julie C.;  Xavier, Ramnik J.;  Kazmierczak, Barbara, I;  Jain, Ruchi;  Egan, Marie;  Rhee, Kyung E.;  Ferguson, David;  Raffatellu, Manuela;  Vlamakis, Hera;  Haddad, Gabriel G.;  Siegel, Dionicio;  Huttenhower, Curtis;  Mazmanian, Sarkis K.;  Evans, Ronald M.;  Nizet, Victor;  Knight, Rob;  Dorrestein, Pieter C.
Favorite  |  View/Download:35/0  |  Submit date:2020/07/03

The ability to communicate quantum information over long distances is of central importance in quantum science and engineering(1). Although some applications of quantum communication such as secure quantum key distribution(2,3) are already being successfully deployed(4-7), their range is currently limited by photon losses and cannot be extended using straightforward measure-and-repeat strategies without compromising unconditional security(8). Alternatively, quantum repeaters(9), which utilize intermediate quantum memory nodes and error correction techniques, can extend the range of quantum channels. However, their implementation remains an outstanding challenge(10-16), requiring a combination of efficient and high-fidelity quantum memories, gate operations, and measurements. Here we use a single solid-state spin memory integrated in a nanophotonic diamond resonator(17-19) to implement asynchronous photonic Bell-state measurements, which are a key component of quantum repeaters. In a proof-of-principle experiment, we demonstrate high-fidelity operation that effectively enables quantum communication at a rate that surpasses the ideal loss-equivalent direct-transmission method while operating at megahertz clock speeds. These results represent a crucial step towards practical quantum repeaters and large-scale quantum networks(20,21).


A solid-state spin memory is used to demonstrate quantum repeater functionality, which has the potential to overcome photon losses involved in long-distance transmission of quantum information.


  
ULTRA - Ultramafic-hosted mineral Resource Assessment 项目
项目编号:NE/S004998/1; 经费:26615(GBP); 起止日期:2020 / dc_date_end
Leaders:  Robert David Knight
Favorite  |  View/Download:14/0  |  Submit date:2019/04/11
Consent insufficient for data release Response 期刊论文
SCIENCE, 2019, 364 (6439) : 446-446
Authors:  Amann, Rudolf I.;  Baichoo, Shakuntala;  Blencowe, Benjamin J.;  Bork, Peer;  Borodovsky, Mark;  Brooksbank, Cath;  Chain, Patrick S. G.;  Colwell, Rita R.;  Daffonchio, Daniele G.;  Danchin, Antoine;  de Lorenzo, Victor;  Dorrestein, Pieter C.;  Finn, Robert D.;  Fraser, Claire M.;  Gilbert, Jack A.;  Hallam, Steven J.;  Hugenholtz, Philip;  Ioannidis, John P. A.;  Jansson, Janet K.;  Kim, Jihyun F.;  Klenk, Hans-Peter;  Klotz, Martin G.;  Knight, Rob;  Konstantinidis, Konstantinos T.;  Kyrpides, Nikos C.;  Mason, Christopher E.;  McHardy, Alice C.;  Meyer, Folker;  Ouzounis, Christos A.;  Patrinos, Aristides A. N.;  Podar, Mircea;  Pollard, Katherine S.;  Ravel, Jacques;  Munoz, Alejandro Reyes;  Roberts, Richard J.;  Rossello-Mora, Ramon;  Sansone, Susanna-Assunta;  Schloss, Patrick D.;  Schriml, Lynn M.;  Setubal, Joao C.;  Sorek, Rotem;  Stevens, Rick L.;  Tiedje, James M.;  Turjanski, Adrian;  Tyson, Gene W.;  Ussery, David W.;  Weinstock, George M.;  White, Owen;  Whitman, William B.;  Xenarios, Ioannis
Favorite  |  View/Download:10/0  |  Submit date:2019/11/27
Toward unrestricted use of public genomic data 期刊论文
SCIENCE, 2019, 363 (6425) : 350-+
Authors:  Amann, Rudolf I.;  Baichoo, Shakuntala;  Blencowe, Benjamin J.;  Bork, Peer;  Borodovsky, Mark;  Brooksbank, Cath;  Chain, Patrick S. G.;  Colwell, Rita R.;  Daffonchio, Daniele G.;  Danchin, Antoine;  de Lorenzo, Victor;  Dorrestein, Pieter C.;  Finn, Robert D.;  Fraser, Claire M.;  Gilbert, Jack A.;  Hallam, Steven J.;  Hugenholtz, Philip;  Ioannidis, John P. A.;  Jansson, Janet K.;  Kim, Jihyun F.;  Klenk, Hans-Peter;  Klotz, Martin G.;  Knight, Rob;  Konstantinidis, Konstantinos T.;  Kyrpides, Nikos C.;  Mason, Christopher E.;  McHardy, Alice C.;  Meyer, Folker;  Ouzounis, Christos A.;  Patrinos, Aristides A. N.;  Podar, Mircea;  Pollard, Katherine S.;  Ravel, Jacques;  Munoz, Alejandro Reyes;  Roberts, Richard J.;  Rossello-Mora, Ramon;  Sansone, Susanna-Assunta;  Schloss, Patrick D.;  Schriml, Lynn M.;  Setubal, Jogo C.;  Sorek, Rotem;  Stevens, Rick L.;  Tiedje, James M.;  Turjanski, Adrian;  Tyson, Gene W.;  Ussery, David W.;  Weinstock, George M.;  White, Owen;  Whitman, William B.;  Xenarios, Ioannis
Favorite  |  View/Download:16/0  |  Submit date:2019/11/27