THE BOSTON AREA PHYSICS CALENDAR
Week of March 31-April 6, 1996

The Boston Area Physics Calendar is published weekly during 
the academic year by the Department of Physics and Astronomy 
at Tufts University.  You may send your announcements by 
e-mail (bapc@tuhepa.phy.tufts.edu) or FAX:(617-627-3878).  
We cannot accept announcements by telephone.  Entries should 
reach us no later than 11:00am on the Monday preceding the week 
of the event. ENTRIES RECEIVED AFTER THE DEADLINE WILL NOT 
BE PUBLISHED.           
                
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Monday, April 1, 1996
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Monday, April 1, 1996, 11:45 a.m.  

Harvard-Smithsonian Center for Astrophysics  
Informal Seminar at Atomic and Molecular Physics Division 
Pratt Conference Room
``Light-induced, multiply-negative-charged 
ions of atomic hydrogen''  
DR. ERNST Van DUIJN
FOM-Institute, AMOLF
Amsterdam, The Netherlands  

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Monday, April 1, 1996, 2:00 p.m.  

Massachusetts Institute of Technology  
Monday Research Seminar  
Center for Theoretical Physics Seminar Room
Building 6, Third Floor
``The Gauged Vector Model in 4-d''  
H. SCHNITZER
Brandeis University  

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Monday, April 1, 1996, 2:30 p.m.  

Brown University  
Theoretical Seminar 
*** Please note special date ***  
Barus & Holley 555
``Title: To Be Announced''  
PROFESSOR DIETER BRILL
University of Maryland  

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Monday, April 1, 1996, 4:00 p.m.  

Worcester Polytechnic Institute  
Colloquium  
Olin Hall, Room 107
``Cavity Q-spoiling in Microdroplet Optical Cavities''  
JANICE CHEUNG
Post Doctoral Fellow
Applied Physics at Yale University & the Department of Chemical 
Engineering at Worcester Polytechnic Institute   
Coffee will be served in Olin 118 at 3:45 p.m.  

_____________________________________________________________
Monday, April 1, 1996, 4:15 p.m.  

Massachusetts Institute of Technology  
The Herman Feshback Lectures in Physics  
 
*** A series of Three Lectures on April 1, 2, and 4, 1996 ***
 
``Learning to Decipher the Hidden Message in the Spectra
of Atomic Nuclei''  
 
MIT 26-100
 
Lecture I  
  
``The Basic Patterns: Independent Particle Motion, 
Shell Structure and Chaos''  
DR. B. R. MOTTELSON
Director of the European Centre for Theoretical
Studies in Nuclear Physics & Related Areas
(ECT), ITALY  
 
Abstract:  
 
The aim of the lecture is to provide an introduction
to some of the basic concepts involved in understanding of the
structure of atomic nuclei.  The quantal spectra of these
systems can be seen as a coded message providing our principal
access to knowledge of this structure. 
_____________________________________________________________

Monday, April 1, 1996, 4:30 p.m.  

Brown University  
Colloquium  
Barus & Holley 168
``Superfluid Vortex Scattering''  
PROFESSOR JOEL KOPLIK
Levich Institute
City University of NY  
Refreshments will be served at 4:00 p.m.  

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Monday, April 1, 1996, 4:30 p.m.  

Harvard University 
Colloquium  
Jefferson Building, Room 250
``Strange Quarks in the Proton''  
PROFESSOR ELIZABETH REISE
University of Maryland  
Tea will be served in Jefferson 461 at 4:00 p.m. 

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Tuesday, April 2, 1996
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Tuesday, April 2, 1996, 12:00 noon 

Massachusetts Institute of Technology
Rowland Institute for Science  
Seminar on Modern Optics and Spectroscopy  
Ronald E. McNair Building
Marlar Lounge (37-252)
``Spectroscopy of Explosive Molecules''  
JEFFREY I. STEINFELD
Massachusetts Institute of Technology  
Refreshments will be served following the Seminar.  
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Tuesday, April 2, 1996, 1:30 p.m.  

Harvard University  
Special Theoretical Physics Seminar  
Jefferson Laboratory, Room 256
``Applying integrable field theories to condensed matter physics''  
DR. PAUL FENDLEY
University of Southern California 1 
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Tuesday, April 2, 1996, 3:30 p.m.  

Boston University 1996,
Physics Colloquium 1996,
Metcalf Science Center, Room 107
``Building a Continent: The India-Eurasia Collision 
and the Tibetan Plateau'' 1996,
PROFESSOR L. ROYDEN
Massachusetts Institute of Technology 1996,
Refreshments will be served following the talk. 1996,
_____________________________________________________________
Tuesday, April 2, 1996, 4:00 p.m.  

Brandeis University  
Martin Weiner Lecture Series, Physics Colloquium  
Physics Building, Abelson 131
``The Science of Juggling''  
PROFESSOR ARTHUR LEWBEL
Brandeis University  
Refreshments will be served in Room 333 at 3:30 p.m.  
_____________________________________________________________
Tuesday, April 2, 1996, 4:15 p.m.  

Massachusetts Institute of Technology  
Astrophysics Colloquium  
The Marlar Lounge, Room 37-252
``Numerical Cosmology: Expected Properties of X-Ray
Clusters in Various Cosmological Scenarios''  
PROFESSOR JEREMIAH OSTRIKER
Princeton University  
Refreshments will be served at 3:45 p.m.  
_____________________________________________________________
Tuesday, April 2, 1996, 4:15 p.m.  

Massachusetts Institute of Technology  
The Herman Feshback Lectures in Physics  
 
*** A series of Three Lectures on April 1, 2, and 4, 1996 *** 
 
``Learning to Decipher the Hidden Message in the Spectra
of Atomic Nuclei''  
 
MIT 26-100 
Lecture II   
``Symmetry and Symmetry Breaking; Correlations & Collective Modes''  
DR. B. R. MOTTELSON
Director of the European Centre for Theoretical
Studies in Nuclear Physics & Related Areas
ITALY 1996, 
 
Abstract:  
 
The aim of the lecture is to provide an introduction
to some of the basic concepts involved in understanding of the
structure of atomic nuclei.  The quantal spectra of these
systems can be seen as a coded message providing our principal
access to knowledge of this structure. 
 
A reception will follow in the Compton Room, 26-100  
_____________________________________________________________
Tuesday, April 2, 1996, 4:15 p.m. 

Massachusetts Institute of Technology  
LNS Colloquium  
The Kolker Room 26-414
``The Next Linear Collider and Its Role in 
Physics Exploration''  
MICHAEL PESKIN
SLAC  
Refreshments will be served in Room 26-414 at 3:45 p.m.  
_____________________________________________________________
Tuesday, April 2, 1996, 4:30 p.m.  

Harvard University  
Harvard-M.I.T. Mathematical Physics Seminar  
Science Center 507
``Yang-Baxter Relations in Statistical Mechanical Models''  
PROFESSOR RODNEY BAXTER
Australian National University and
Northeastern University  

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Wednesday, April 3, 1996
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Wednesday, April 3, 1996, 11:45 a.m.  

Northeastern University  

***** Diamond Anniversary Lectures *****

A series of ten pedigogical lectures
Lecture IV  
 
114 Dana (Physics Department)
``Exactly Solvable Models in Statistical Mechanics''  
DR. RODNEY J. BAXTER
Australian National University  
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Wednesday, April 3, 1996, 3:00 p.m.  

Massachusetts Institute of Technology  
Joint Lattice Seminar 
Center for Theoretical Physics Seminar Room
Building 6, Third Floor
``Quenched Chiral Perturbation Theory and Pion Scattering''  
CLAUDE BERNARD
Washington University, St. Louis  
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Wednesday, April 3, 1996, 4:30 p.m.  

Massachusetts Institute of Technology   
Joint Theory Seminar  
Center for Theoretical Physics Seminar Room
Building 6, Third Floor
``Calculating $f_B $ on the Lattice'' 1 
CLAUDE BERNARD
Washington University, St. Louis  

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Thursday, April 4, 1996
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Thursday, April 4, 1996, 12:00 noon 

Harvard University 
Condensed Matter Theory Seminar  
Pierce 100F
``Localization Transitions in Non-Hermitian Quantum Mechanics''  
NAOMICHI HATANO
Harvard University  
_____________________________________________________________
Thursday, April 4, 1996, 1:30 p.m.  
 
*** Please note new starting time for 1996 seminars ***  

Harvard University
Division of Applied Sciences  
Materials Science Seminar  
David Turnbull Room
Gordon McKay Laboratory, Room 402
``Drops in Space: Studying surfaces and fluid mechanics in 
Microgravity''  
PROFESSOR ROBERT APFEL
Robert Higgin Professor of Mechanical
Engineering, Yale University  
 
Abstract:  
 
The study of the properties of liquid interfaces in the presence of surface
active materials is facilitated by the use of acoustically levitated drops,
thereby avoiding the complications associated with liquid contact with solid
surfaces.  Moreover, if those drops are perfectly spherical, as is possible in
the microgravity of an orbiting space shuttle, then the shape oscillations of
those drops follow the idealized theory that assumes such symmetry.  We have
performed a series of tests with such drops in two space shuttle missions
(summer of 1992 and fall of 1995).  By studying small amplitude quadrupole shape
oscillations, we have been able to deduce surface properties, including surface
tension, Gibbs elasticity, and surface viscosity.  By studying shape
oscillations about a deformed shape (produced by acoustic radiation stress), we
have been able to deduce the effect of the acoustic field on the shape
oscillations, and therefore we should be able to modify the theory so that
experiments done in earth laboratories (1-G) can also yield surface properties.
By studying superdeformed oscillations of drops in 0-G, we are able to test out
boundary integral methods for large-amplitude free oscillations of drops, which
enable us to determine surface sorption rates.  The video sequences of these
observations and some totally unexpected ones (such as fission, orbiting, and
drop fusion) will be shown. [Work performed at Yale Acoustics Lab. by R. Apfel,
Y. Tian, J. Jankovsky, X. Chen, G. Holt.] 
_____________________________________________________________
Thursday, April 4, 1996, 3:00 p.m.  

Harvard University  
Special Seminars of the String Theory Group  
Jefferson Laboratory, Room 256
``Title: To Be Announced''  
PROFESSOR PAUL TOWNSEND
DAMTP- Cambridge - UK  
_____________________________________________________________
Thursday, April 4, 1996, 4:00 p.m.  

Harvard-Smithsonian Center for Astrophysics  
Scientific Colloquium  
60 Garden Street (Phillips Auditorium)
``Compact objects and binaries in globular 
clusters: ROSAT and HST Revelations''  
 
DR. JONATHAN GRINDLAY
Harvard-Smithsonian Center for Astrophysics  
 
Abstract:  
 
Whereas only a decade ago globular clusters were thought to be
relatively devoid of binaries, these systems are now known to
play an important role in the dynamical evolution of globulars
and even the appearance of these ancient stellar populations. X-ray binaries
were the among first to be suspected in globulars and are laboratories
for studying both binary formation and evolution as well as the
distribution of compact objects in the dense cores of globular clusters.
ROSAT has greatly extended the sensitivity and number of dim x-ray
sources in globulars and allowed their nature and population to be
studied as well as optical counterpart searches with HST. We describe
our recent and ongoing investigations with ROSAT and HST which have
yielded the first direct evidence that globular clusters are rich
in accreting white dwarf systems (cataclysmic variables), as long
suspected but not previously observed. Our recent HST/FOS spectra of
several cluster CV candidates suggest they may be magnetic
systems, raising intriguing questions about how the dense
stellar environment might favor the production of magnetic white
dwarfs.

Tea will be served at 3:30 p.m.  
_____________________________________________________________
Thursday, April 4, 1996, 4:15 p.m.  

Massachusetts Institute of Technology  
The Herman Feshback Lectures in Physics 
 
*** A series of Three Lectures on April 1, 2, and 4, 1996 *** 
 
``Learning to Decipher the Hidden Message in the Spectra
of Atomic Nuclei''  
 
MIT 10-250
 
Lecture III  
 
``The Challenge Posed by the Recent Discovery of 
$\Delta I = 4 $ Structure in the Spectra 
of Superdeformed Rotational Bands''  
DR. B. R. MOTTELSON
Director of the European Centre for Theoretical
Studies in Nuclear Physics & Related Areas, ITALY 
 
Abstract:  
 
The aim of the lecture is to provide an introduction
to some of the basic concepts involved in understanding of the
structure of atomic nuclei.  The quantal spectra of these
systems can be seen as a coded message providing our principal
access to knowledge of this structure. 
_____________________________________________________________
Thursday, April 4, 1996, 4:30 p.m.  

Brown University  
Colloquium  
Barus & Holley 751
``Correlated Bilayer Electron States''  
PROFESSOR MANSOUR SHAYEGAN
Princeton University  
 
Abstract:  
 
We will present magnetotransport measurements in a wide GaAs quantum
well as the electron charge distribution is tuned from a
single-layer through an interacting bilayer configuration to
weakly-coupled parallel layers.  The system exhibits a remarkably
rich set of correlated BILAYER states including unique fractional
quantum Hall states at even-denominator fillings and insulating
phases which are consistent with pinned, bilayer Wigner crystal
states. 

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Friday, April 5, 1996
_____________________________________________________________
Friday, April 5, 1996, 4:00 p.m. 

Harvard University  
Division of Applied Sciences: Condensed Matter Seminar  
Pierce Hall, Room 209
``Vortex Dynamics Near the Vortex Lattice Melting Transition
in $YBa_2Cu3O_{7-d}$'' 
DR. WAI KWOK
Argonne National Laboratory  
Refreshments will be served following the seminar in the Brooks Room. 
_____________________________________________________________
Friday, April 5, 1996, 4:30 p.m.  

Harvard University  
Seminar on Probability, Analysis and Mathematical Physics  
Jefferson Laboratory, Room 356
``Decay to Equilibrium in Random Spin Systems on a Lattice''  
ALICE GUIONNET
Courant Institute  
_____________________________________________________________
A Friendly Reminder:

The Deadline for the April 7-April 13, 1996 Issue is: 

MONDAY, April 1, 1996 at 11:00 a.m. 


End of Document.