THE BOSTON AREA PHYSICS CALENDAR
Week of November 17 - November 23, 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 ENTRIES RECEIVED AFTER THE DEADLINE WILL NOT 
BE PUBLISHED.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, November 18, 1996
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Monday, November 18, 12:15 p.m.

Harvard University
High Energy Physics Seminar 
HEPL Third Floor Conference Room
42 Oxford Street
``B Mixing and CP Violation at CDF - Implications for the CKM Matrix''
COLIN GAY
Harvard University 


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Monday, November 18, 2:00 p.m.

Massachusetts Institute of Technology
Monday Research Seminar 
Center for Theoretical Physics Seminar Room
Third Floor, Building 6
``Knots and Solitons''
LUDWIG FADDEEV
Steclov Institute, St. Petersburg, RUSSIA 


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Monday, November 18, 2:30 p.m.

Brown University
Special Theoretical Seminar 
Barus & Holley Building, Room 555
``Super-Kamiokande: Neutrino Mass and Proton Decay''
DR. SOO-BONG KIM
Boston University 


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Monday, November 18, 4:00 p.m.

Massachusetts Institute of Technology
Nuclear Theory Seminar 
Center for Theoretical Physics Seminar Room
Building 6, Third Floor
``An Effective Theory for Nuclear Physics''
BIRA VAN KOLCK
Institute for Nuclear Theory 


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Monday, November 18, 4:30 p.m.

Brown University
Colloquium 
Barus & Holley Building
Room 168
``DNA: Recognition and Computation''
PROFESSOR ALBERT LIBCHABER
Rockefeller University 
Refreshments will be served at 4:00 p.m.


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Monday, November 18, 4:30 p.m.

Harvard University
Colloquium 
Jefferson Building, Room 250
``Study of a Bose-Einstein Condensate: Kick It, Shake It, 
Drop It, Cut It''
PROFESSOR WOLFGANG KETTERLE
Massachusetts Institute of Technology 
Tea will be served in Jefferson 461 at 4:00 p.m.


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Monday, November 18, 4:30 p.m.

Worcester Polytechnic Institute
Colloquium 
Olin Hall, Room 107
``Tensile Strain in AlGaAsP/GaAs Single Quantum-Well Lasers''
DR. KEI MAY LAU
University of Massachusetts, Amherst 
Refreshments will be served in Olin 118 at 4:00 p.m.


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Tuesday, November 19, 1996
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Tuesday, November 19, 12:00 p.m.

Massachusetts Institute of Technology
Seminar on Modern Optics and Spectroscopy 
The Marlar Lounge
Room 37-252
``Medical Imaging with Hyper-Polarized ^3He + ^{129}Xe''
WILLIAM HAPPER
Princeton University 
Refreshments will be served following the seminar.
For map see http://amo.mit.edu/mos.html


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Tuesday, November 19, 2:30 p.m.

Brandeis University
Theoretical Seminar 
Physics Building, Room 229
``Exact S-Matrices for Affine Toda Solitons
and Their Bound States''
DR. GEORG GANDENBERGER
Brandeis University 


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Tuesday, November 19, 2:30 p.m.

Harvard University, Center for Astrophysics
Joint Tufts/CfA/MIT Cosmology Seminar 
Phillips Auditorium
``Experimental Search for Axion Dark Matter''
LESLIE ROSENBERG
Massachusetts Institute of Technology 


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Tuesday, November 19, 3:45 p.m.

Boston University
Colloquium 
Room SCI-107, 590 Commonwealth Avenue
``The Quark Is a Porker: Top Quark Physics at the Fermilab
Tevatron''
DR. J. BUTLER
Boston University 
Refreshments will be served at 3:15 p.m.


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Tuesday, November 19, 4:00 p.m.

Brandeis University
Martin Weiner Lecture Series, Physics Colloquium 
Physics Building, Abelson 131
``Doing Science in India: The Raman-Born Controversy''
DR. ABHA SUR
Harvard University 
Refreshments will be served in Room 333 at 3:30 p.m.


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Tuesday, November 19, 4:00 p.m.

Clark University
Colloquium 
Sackler Science Center, Room N-105
``Engineering A Bridge Between Basic and Device Physics''
DR. DON HEIMAN
Massachusetts Institute of Technology 


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Tuesday, November 19, 4:15 p.m.

Massachusetts Institute of Technology
Astrophysics Colloquium 
The Marlar Lounge
Room 37-252
``Islands of Calm in a Turbulent Sea: Velocity-Coherenr Dense 
Cores in the Ism''
PROFESSOR ALYSSA GOODMAN
Harvard University 
Refreshments will be served at 3:45 p.m.


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Wednesday, November 20, 1996 
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Wednesday, November 20, 12:15 p.m.

Harvard University
High Energy Physics Seminar 
HEPL Third Floor Conference Room (42 Oxford Street)
``Positron Production by Laser Light''
KIRK MCDONALD
Princeton University 


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Wednesday, November 20, 4:30 p.m.

Harvard University
Joint Theory Seminar 
Jefferson 256
``New Communication Mechanisms for Supersymmetry Breaking''
JOHN MARCH-RUSSELL
IAS - Princeton 


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Wednesday, November 20, 5:00 p.m.

Harvard University/Center for Astrophysics
Joint Atomic Physics Seminar 
Jefferson Laboratory, Room 356
``Quantum Transport of Ultra-Cold Atoms in Optical Lattices''
 
Abstract:
 
We study experimentally atomic motion in an accelerating
                periodic lattice. The potential is formed by a chirped
                standing wave of light that is tuned far from atomic resonance
                so that the atoms remain in the ground state. This atom
                accelerator can be used to launch sub-recoil atomic samples
                for atomic interferometry. It is also strongly related to the
                condensed matter system of a Bloch electron in a dc electric
                field which has been studied for many years. We observe
                Wannier-Stark ladder resonances by probe spectroscopy of the
                band structure. We also observe quantum tunnelling, which
                is the ultimate loss mechanism for this atom accelerator. 
                
DR. MARK RAIZEN
University of Texas at Austin
Tea will be served at 4:30 p.m. 


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Thursday, November 21, 1996
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Thursday, November 21, 12:45 p.m.

Boston University
Biophysics Seminar 
SCI 352 (590 Commonwealth Avenue)
``Structure and Dynamics of DNA bases and DNA base pairs: Quantum
Mechanical Study''
PROFESSOR PAVEL HABZA
 J. Heyrovsky Institute of Physical Chemistry
Academy of Sciences of the Czech Republic, PRAGUE


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Thursday, November 21, 2:30 p.m.

Brown University
Theoretical Seminar 
Barus & Holley Building, Room 555
``Title: To Be Announced''
SPEAKER: To Be Announced


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Thursday, November 21, 2:30 p.m.

Harvard University
Duality Seminar 
Jefferson 256
``String Theory on Non-Conformal Backgrounds''
PROFESSOR BARTON ZWIEBACH
Massachusetts Institute of Technology


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Thursday, November 21, 4:00 p.m.

Clark University
Colloquium 
Sackler Science Center, Room N-105
``Skyrmion Excitations in a Quantum Hall Ferromagnet''
DR. BENNETT GOLDBERG
Boston University 


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Thursday, November 21, 4:00 p.m.

Harvard-Smithsonian Center for Astrophysics
Scientific Colloquium 
60 Garden Street (Phillips Auditorium)
``First Results from the SOHO Ultraviolet Coronagraph Spectrometer''
DR. JOHN KOHL
Harvard-Smithsonian Center for Astrophysics 
 
Abstract:
 
The SOHO Ultraviolet Coronagraph Spectrometer (UVCS/SOHO) is a joint
project of SAO and the University of Florence. The instrument
is being used for ultraviolet spectroscopy of the extended solar
corona in order to describe and understand coronal heating and solar
wind acceleration. The observations include measurements of spectral
line profiles for HI Lyman alpha and beta, O VI 103.2 and 103.7 nm,
Mg X 62.5 nm and other spectral lines. Intensities for about 40
minor ions have been observed. 
 
Preliminary results for equatorial streamers provide line-of-sight
velocity distributions for protons, oxygen and iron ions that are
similar to those expected for an equilibrium plasma at a temperature
of 2E6 K. In the case of polar coronal holes, the line-of-sight
velocities at 1/e are much larger than expected (several hundred km/s)
and are similar for hydrogen, oxygen and magnesium with oxygen having
the largest values. The velocities in the radial direction appear
to be much smaller.  The velocity distribution may have contributions from
microscopic velocities, macroscopic velocities and transverse wave motions.
Derived outflow velocities for hydrogen and oxygen are supersonic above about
2 solar radii from sun center in polar coronal holes, and oxygen outflow
velocities reach values of about 100 km/s in the tips of equatorial
streamers. Mass flow velocities during a coronal mass ejection also have
been measured. 

Tea will be served at 3:30 p.m.


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Thursday, November 21, 4:00 p.m.

Northeastern University
Condensed Matter Seminar 
114 Dana
`` Synthesis, Characterization and Properties of Graphite
Nanofibers''
PROFESSOR NELI RODRIGUEZ
Northeastern University 
Refreshments will be served at 3:45 p.m.


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Thursday, November 21, 4:15 p.m.

Massachusetts Instititute of Technology
Colloquium 
MIT Room 10-250
`` Disturbing Phenomena in the Universe and Relevant 
Collective Processes in (earthbound) High Eenergy Plasmas''
BRUNO COPPI
Massachusetts Instititute of Technology 
Refreshments will be served in Room 26-110 at 3:45 p.m.


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Thursday, November 21, 4:30 p.m.

Brown University
Condensed Matter Seminar 
Barus & Holley Building, Room 751
``Theory of Coffee Rings: the Maxwell-Houze Equations''
DR. GREG HUBER
University of Chicago 
Refreshments will be served at 4:00 p.m.


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Friday, November 22, 1996
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Friday, November 22, 12:00 p.m.

Massachusetts Institute of Technology
NFL Friday Seminar 
MIT Room 12-132
``Scaling of the quasiparticle spectrum for d-wave superconductors''
DR. STEVEN H. SIMON
Massachusetts Institute of Technology 


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Friday, November 22, 12:30 p.m.

Boston University
Condensed Matter Seminar 
Metcalf Center for Science and Engineering
(590 Commonwealth Avenue), Room 352
``Old and New Aspects in the Comprehension of Barkhausen Effect''
DR. GIANFRANCO DURIN
IEN Galileo Ferraris- Torino - ITALY 


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Friday, November 22, 4:00 p.m.

Harvard University
Division of Engineering and Applied Sciences
Condensed Matter Seminar 
Pierce Hall, Room 209
``Using 60 Teslas to Uncover the Low-Temperature 
Normal-State Behavior of the High-Temperature Superconductors''
DR. GREG BOEBINGER
Bell Labs, Lucent Technologies
Refreshments will be served following the seminar in the Brooks Room. 


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A Friendly Reminder: 

The Deadline for the November 24-November 30, 1996 Issue is:

MONDAY, November 18, 1996 at 11:00 a.m.

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