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Dimensions Department of Physics & Astronomy Photo courtesy of Guohua Wei IN THIS ISSUE: Faculty News Alumni Focus Selected Publications 2015 Graduate and Masters Students Research Staff Society of Physics Students Graduate Achievements Department Events Undergraduate Achievements Faculty News ClaudeAndré FaucherGiguère's research group Vicky Kalogera has accepted an inviation to serve on (GalForm @ NU) is part ofa multi-institution team that the Committee on Astronomy and Astrophysics (CAA) has been awarded a large amount oftime to use the ofthe National Research Council. The CAA's purpose Hubble Space Telescope to map the gas flows around is to support scientific progress in astronomy and the Andromeda galaxy. It will be the first time ever that astrophysics and assist the federal goverment in they will be able to produce a spatially-resolved map of integrating and planning programs in these fields. It is the gas around a galaxy other than the Milky Way. This a joint committee ofthe Space Studies Board and the work is very important because these gas flows regulate Board on Physics andAstronomy under the National how galaxies grow. The observations will be led by Academies ofSciences, Engineering, and Medicine in collaborators at the University ofNotre Dame and the Washington, D.C.. group at Northwestern will develop the theoretical tools needed for the interpretation ofthe Hubble Prof. Kalogera has received the 2015 Hans A.Bethe observations. This ambitious project, called Project Prize. This distinguished award is given to individuals AMIGA (Absorption Maps In the Gas ofAndromeda), who have made outstanding contributions to will require an enormous 150 hours ofHubble Space astrophysics, nuclear physics, nuclear astrophysics. Telescope time. Past recipients have included James Lattimer, Stan This new award ofa large amount oftime to use the Woosley, Gordon Baym, John Bahcall, and others. Hubble Space Telescope builds on a recent pilot study http://www.aps.org/programs/honors/prizes/bethe.cfm led by the Notre Dame collaborators which has recently garnered much media attention. Prof. Kalogera has been elected to the Large Synoptic http://hubblesite.org/newscenter/archive/releases/2015/ Survey Telescope Corporation’s (LSSTC) Executive 15/full/ Board ofDirectors. In this capacity, Prof. Kalogera will participate in the oversight and administration ofthe Gerald Gabrielse, a former chair ofthe Harvard Corporation. Physics Department, is coming to Northwestern to http://www.lsst.org/ found and direct a Center for Fundamental Physics at Low Energy (CFP). Amember ofthe National In August, Prof. Kalogera spoke to nearly 40 Office for Academy ofSciences, Gabrielse is world renowened Research staffmembers at NU Knowledge at Noon, a for his high-precision tests ofthe Standard Model and faculty research presentation series. The series is its fundamental symmetries, and for starting low designed to allow staffto learn directly from energy antiproton and antihydrogen physics. The Northwestern faculty about the exciting research that Department ofPhysics & Astronomy is excited that the takes place at our institution. The series also aims to Gabrielse group and the CFP will add low energy foster connections across Office for Research staffby particle physics done using novel methods from providing the opportunity for them to meet in person. atomic, molecular, and optical physics to the many In her talk, "NU Astronomy: Big Data, Telescope cutting edge research opportunities offered to its Innovation, and the Cosmos," Dr. Kalogera covered a graduate students and postdocs. Gabrielse has briefhistory ofastronomy, but she focused mainly on prestigious awards for both his research and his the very near future: the importance ofbig data and the teaching, and will be the department's first Board of value oftwo large, related initiatives, the Large Trustees Professor. Synoptic Survey Telescope (LSST) and the Laser http://www.northwestern.edu/newscenter/stories/2015/1 Interferometer Gravitational-Wave Observatory 1/physicist-gerald-gabrielse-to-join-northwestern-.html (LIGO). https://ligo.caltech.edu/ Fall 2015 1 Dimensions Jens Koch co-organizedandlecturedattheinternational Chemistry ofEarth's Interior, Quantum Optics and research workshop "Nonequilibrium physics ofdriven- Quantum Information. Applied Physics prepares graduates dissipative many-body systems," hosted by the Center for professional careers in science and technology, for Quantum Technology at the University ofKwazulu- ranging from academics to industry. Natal, South Africa, 21-25 September, 2015. Professor Koch is also an invited lecturer at the workshop "Many- James Sauls has been named Visiting Scholar ofthe body physics with light," hosted by the Kavli Institute Institute for Materials Science at Los Alamos National for Theoretical Physics at the University ofCalifornia, Laboratory. Professor Sauls delivered lectures on Santa Barbara. frontiers in hybrid quantum materials and devices, and on Shane Larson, Research Associate Professor and electrodynamics oftopological superconductors at Los Astronomer at Adler Planetarium, has been elected a Alamos. Fellow ofthe American Physical Society. His citation commends him for "Impacting science and society through the integration ofpublic engagement and research, and for empowering generations offuture Selected Publications scientists by his example." Prof. Larson spoke to a group of25 NU staffers from ClaudeAndré FaucherGiguère across Weinberg with his presentation, "Whispers Supernova feedback in an inhomogeneous interstellar from the Cosmos." He shared his enthusiasm as both medium by Davide Martizzi, Claude-André Faucher- an amature astronomer and a professional Giguère, Eliot Quataert. MNRAS, 450, 504 (2015). astrophysicist, walking the audience through the past Gusty, gaseous flows ofFIRE: galactic winds in and into the future ofthe science ofgravitational cosmological simulations with explicit stellar feedback by waves. Alexander L. Muratov, L. Alexander, Dusan Keres, Erik Luijten has been elected Vice Chair ofGSOFT, Claude-André Faucher-Giguère, Philip F. Hopkins, Eliot the APS Topical Group on Soft Matter. This is a position Quataert, Norman Murray. MNRAS, 454, 2691 (2015). for multiple years, during which he will subsequently transition to become Chair Elect and then Chair ofthis Faucher-Giguère’s group is pursuing a two-pronged group. approach to solving the problem ofgalaxy formation. On one hand, the Faucher-Giguère group studies the basic Adilson E. Motter hasbeenelectedFellowofthe physical processes involved in the complex galaxy American Association for the Advancement ofScience formation process, such as energy injection from (AAAS). He is being honored “For distinguished supernova explosions. On the other hand, the group contributions to the fields ofcomplex systems and implements the physical insights into the basic physical nonlinear dynamics, particularly for advances in the processes into fully cosmological models. The following network modeling and control ofcollective dynamics in pair ofnew papers is an excellent example ofthe power complex physical and biophysical systems.” ofthis approach, in which a new understanding ofthe http://www.northwestern.edu/newscenter/stories/2015/11/ effects ofsupernovae on the interstellar medium of aaas-fellows.html galaxies developed in the first paper was used to study the generation ofgalaxy-scale outflows in a cosmological James Sauls and Erik Lujiten were appointed co- model ofgalaxy evolution. Directors ofthe Applied Physics Graduate Program on http://adsabs.harvard.edu/abs/2015MNRAS.450..504M November 1. Applied Physics is a graduate program http://adsabs.harvard.edu/abs/2015MNRAS.454.2691M offered by faculty ofWeinberg and McCormick that offers a PhD in a spectrum ofresearch opportunities in Applied Physics involving Condensed Matter Physics, Physical Chemistry, Materials Physics, Physics and Fall 2015 2 Dimensions Adilson E. Motter counterparts, suggesting that Advanced LIGO could Control ofstochastic and induced switching in identify certain binaries as originating from dense stellar biophysical networks by D.K. Wells, W. L. Kath, andA. environments. E. Motter. Phys. Rev. X 5, 031036 (2015). http://journals.aps.org/prl/abstract/10.1103/PhysRevLett. 115.051101 Noise caused by fluctuations at the molecular level is a fundamental part ofintracellular processes. This study James Sauls presents a scalable, quantitative least-action method to Superfluid phases of3He in nano-scale channels by predict and control noise-induced switching between Joshua Wiman, and J. A. Sauls. Physical Review B 92, different states in genetic networks that, conveniently, 144515 (2015); DOI: 10.1103/PhysRevB.92.144515 can also control transitions between stable states in the We consider superfluid 3He confined within long absence ofnoise. This framework offers a systems cylindrical channels and report new theoretical approach to identifying the key factors for rationally predictions for the equilibrium phases under strong manipulating biophysical dynamics. confinement. Four stable phases are found: a polar phase This article has been the subject ofseveral independent stable in the vicinity of , a strongly anisotropic, news articles, including: Tc cylindrical analog ofthe bulk B phase stable at -Network control: Letting noise lead the way - Research sufficiently low temperatures, and two chiral A-like team leverage cells’ noisy nature to keep them healthy, phases with distinctly