THE BOSTON AREA PHYSICS CALENDAR
Week of Monday, March 30 - April 5, 1997
 
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 ENTRIES RECEIVED AFTER THE DEADLINE WILL NOT 
BE PUBLISHED.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, Monday, March 31, 1997
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Monday, March 31, 2:00 p.m.

Massachusetts Institute of Technology
Monday Research Seminar 
Center for Theoretical Physics Seminar Room
Building 6 - Third Floor
``Run-away electrons in relativistic spin 1/2 quantum electrodynamics''
FRANCIS LOW
Massachusetts Institute of Technology


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Monday, March 31, 4:00 p.m.

Massachusetts Institute of Technology
Nuclear Theory Seminar 
Center for Theoretical Physics Seminar Room
Building 6, Third Floor
``Disorienting the Chiral Condensate at the QCD Phase Transition''
KRISHNA RAJAGOPAL
CalTech 


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Monday, March 31, 4:30 p.m.

Harvard University
Physics Colloquium 
Jefferson Building, Room 250
``Solar Neutrinos: You've got to be very careful if you don't know 
where you are going because you might not get there.''
PROFESSOR HAXTON
University of Washington 
Tea will be served in Jefferson 461 at 4:00 p.m.


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Tuesday, April 1, 1997
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Tuesday, April 1, 12:00 p.m.

Massachusetts Institute of Technology
Seminar on Modern Optics and Spectroscopy 
Marlar Lounge (37-252)
Ronald E. McNair Building
``Ultrafast Laser Spectroscopy and Control Dynamics with Intermediate
State Selection''
STEVE LEONE
University of Colorado and NIST 
Refreshments will be served following the seminar.


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Tuesday, April 1, 2:30 p.m.

Harvard University
Joint Tufts/CfA/MIT Cosmology Seminar 
Pratt Conference Room
``Submillimeter-wave Astronomy from the Antarctic Plateau''

Abstract:

 The Antarctic Submillimeter Telescope and Remote Observatory (AST/RO)
has been operational at the South Pole since January 1995.  Preliminary
results include site testing and observations of atomic carbon in
PDR regions, high-latitude translucent clouds, the galactic center
and the Magellanic Clouds.  A off-axis 10-meter telescope will be proposed
to the Office of Polar Programs as a user-facility instrument for
wavelengths between 200 microns and 6 millimeters.  Given the climatic
conditions at Pole, this instrument will have a data acquisition rate
two orders of magnitude faster than comparable instruments at Mauna Kea.
This will enable programs in observational cosmology.  The 100 micron
dust continuum  radiation and the far-infrared cooling lines of the
ISM in newly-collapsed and disorganized galaxies at high redshift
emit most of their luminosity at wavelengths observable with this
telescope.  Measurement of CMBR anisotropies at arcminute and smaller
scales need to be made at short (2 mm) wavelengths in order to
disentagle the Sunyaev-Zel'dovich effect from any intrinsic anisotropy.

ANTHONY STARK
CfA 
For More Information, See:
http://cfa-www.harvard.edu/~aas/tenmeter/tenmeter.html


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Tuesday, April 1, 4:00 p.m.

Massachusetts Institute of Technology
LNS Colloquium 
Kolker room, 26-414
``Recent Results from ZEUS on Positron-Proton Scattering at High X and
     Q-squared''
DAVID WILLIAMS
DESY 
Refreshments will be served at 3:45 p.m.


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Tuesday, April 1, 4:15 p.m.

Brandeis University
Martin Weiner Lecture Series, Physics Colloquium 
Physics Building, Abelson 131
``Quantum Waves In Chaotic Billiards''
PROFESSOR S. SRIDHAR
Northeastern University 
Refreshments will be served in Room 333 at 3:30 p.m.


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Wednesday, April 2, 1997
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Wednesday, April 2, 4:15 p.m.

Boston College
Physics Colloquium 
Higgins Hall, Room 354
``The Logic Of The Large Hadron Collider-How Do We Know Where To Look 
Unless We Really Know Waht We Are Looking For?''
PROFESSOR HOWARD GEORGI
Harvard University
Tea will be served at 3:30 p.m.


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Wednesday, April 2, 5:00 p.m.

Harvard University/Center for Astrophysics
Joint Atomic Physics Seminar 
Jefferson Laboratory, Room 356
``Bumping, Squeezing and Massaging Atoms with Light:
New Results with Optical Lattices''

Abstract:

Intersective laser beams produce an interference pattern of periodically
changing intensity and polarization that can trap atoms in a regular
array of potential wells. The trapping forces experienced by the atoms
can be understood as arising from the combined action of absorption of
light from one laser beam and stimulated emission into another. This
coherent redistribution of light among the laser beams
can be used to detect the motion of atoms in the lattice. We have
recently used  this idea to observe the collective oscillation of
lattice-trapped atoms. The technique has high sensitivity and has enabled
us to see quantum collapse and revival of the oscillations. These new
results will be discussed, along with a review of some of the basic
features of optical lattices.

WILLIAM D. PHILLIPS
National Institute of Standards and Technology
Gaithersburg, Maryland
Tea will be served at 4:30 p.m.


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Thursday, April 3, 1997
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Thursday, April 3 , 1:30 p.m.

Harvard University
Materials Science Seminar 
McKay Laboratory 402
``Atomic Scale Studies of Local Electronic Structure
at Defects and Interfaces: A Case Study in Ni3Al''
DR. DAVID A. MULLER
Applied Physics Department
Cornell University 


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Thursday, April 3, 4:00 p.m.

Harvard-Smithsonian Center for Astrophysics
Scientific Colloquium 
60 Garden Street (Phillips Auditorium)
``Galaxies and Large Scale Structure at Redshift Z~3''

Abstract:

 I will discuss the current state of a large survey of star-forming
     galaxies at redshifts well beyond those of current field galaxy
     redshift surveys. The samples of z~3 galaxies, selected by the
     presence of continuum breaks at the rest--frame Lyman limit,
     are now large enough that we can
     begin to trace the large-scale distribution of galaxies at these
     early times, with interesting implications for the
     progress of the growth of structure and the cosmological
     world model. I will also discuss the implications of these
     techniques and other complementary techniques for the history
     of galaxies and star formation since z~4.
     
DR. CHARLES C. STEIDEL
Department of Astronomy
California Institute of Technology
Tea will be served at 3:30 p.m. 


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Thursday, April 3, 4:15 p.m.

Massachusetts Institute of Technology
Physics Colloquium 
MIT Room 10-250
``Taking the Measure of the Universe:
            The Cosmic Microwave Background Radiation''
CHARLES L. BENNETT
Laboratory for Astronomy and Solar Physics
NASA Goddard Space Flight Center 
Refreshments will be served in MIT Room 26-110 at 3:45 p.m.


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Thursday, April 3, 4:30 p.m.

Brown University
Condensed Matter Seminar 
Barus & Holley Building
Room 751
``Structural Model for High Temperature Phase Transitions on 
Ge(111) and Si(111) Surfaces''
PROFESSOR NED GREENE
Brown University 


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Friday, April 4, 1997
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Friday, April 4, 12:30 p.m.

Boston University
Condensed Matter Seminar 
Rm 352 at 590 Comm. Ave
``Nanotribology: The Atomic-Scale Origins of Friction''

Abstract:

Long neglected by physicists, the study of friction's atomic-level
origins, or nanotribology, indicates that the force stems from various
unexpected sources, including sound energy. Progress in this field will
be discussed, including our use of a quartz microbalance to measure the force
to slide  one- and two-atom thick films along ordered and disordered metal
substrates.

JACQUELINE KRIM
Northeastern University
Please call 353-2600 to arrange for parking.


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Friday, April 4, 4:00 p.m.

Harvard University Division of Engineering and Applied Sciences
Condensed Matter Seminar 
Pierce Hall, Room 209
``Quantum Computer''
SETH LLOYD
Massachusetts Institute of Technology
Refreshments will be served in the Brooks Room following the seminar.
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  A Friendly Reminder:
  
  The Deadline for the April 6 -  April 12, 1997 Issue is:
  
  MONDAY, March 31, 1997 at 11:00 a.m.
   
  
  End of Document