THE BOSTON AREA PHYSICS CALENDAR
Week of Monday, March 2 - March 8, 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 ENTRIES RECEIVED AFTER THE DEADLINE WILL NOT 
BE PUBLISHED.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 3, 1997
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Monday, March 3, 2:00 p.m.

Massachusetts Institute of Technology
Monday Research Seminar 
Center for Theoretical Physics Seminar Room
Building 6, Third Floor
``Critical Strings and Membranes from the N=(2,1) String''
ALBION LAWRENCE
Harvard University 
 

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Monday, March 3, 4:00 p.m.

Massachusetts Institute of Technology
Nuclear Theory Seminar 
Center for Theoretical Physics Seminar Room
Building 6 - Third Floor
``QCD Sum Rules and Nucleon Properties''
XUEMIN JIN
Massachusetts Institute of Technology

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Monday, March 3, 4:30 p.m.

Brown University
Colloquium 
Barus & Holley Building, Room 168
``New Particle Searches at the High Energy Frontier''
PROFESSOR SARAH ENO
University of Maryland
Refreshments will be served at 4:00 p.m.

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Monday, March 3, 4:30 p.m.

Harvard University
Colloquium 
Jefferson Building, Room 250
``Communication in Quantum Networks
Quantum Optical Concepts''
PROFESSOR PETER ZOLLER
University of Innsbruck
Tea will be served in Jefferson 461 at 4:00 p.m.
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Tuesday, March 4, 1997
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Tuesday, March 4, 12:00 p.m.

Massachusetts Institute of Technology
Seminar on Modern Optics and Spectroscopy 
Marlar Lounge (37-252)
Ronald E. McNair Building
``Wave-Packet Motion of Atoms in Optical Lattices''
GEORG RAITHEL
National Institute of Standards and Technology 

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Tuesday, March 4, 2:30 p.m.

Tufts University
Tufts-M.I.T.-CfA Joint Cosmology Seminar 
Anderson Hall, Room 313
``Warp Bubbles, Warp Tubes, and Time Machines''
PROFESSOR ALLEN EVERETT
Tufts University 
Refreshments will be served in Robinson 251 at 2:00 p.m.

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Tuesday, March 4, 4:15 p.m.

Massachusetts Institute of Technology
LNS Colloquium 
Kolker Room, 26-414
``Light Quark Masses''
AANDREAS KORNFELD
FNAL
Refreshments will be served at 3:45 p.m. 

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Tuesday, March 4, 3:45 p.m.

Northeastern University
The Center for Interdisciplinary Research on Complex Systems (CIRCS)
CIRCS Seminar 
Dana Research Center, Room 114
``Structure/Function Studies of Human Apurinic Endonuclease''
PHYLLIS STRAUSS
Department of Biology
Northeastern University 

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Wednesday, March 5, 1997
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Wednesday, March 5, 4:30 p.m.

Massachusetts Institute of Technology
Joint Theory Seminar 
Center for Theoretical Physics Seminar Room
Building 6 - Third Floor
``Some Physics Questions and Mathematical 
Patterns in d=4 N-1 Duality''
DR. MATTHEW J. STRASSLER
Institute for Advanced Study/Harvard University
Refreshments will be served at 4:00 p.m.

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Wednesday, March 5, 5:00 p.m.

Harvard University/Center for Astrophysics
Joint Atomic Physics Seminar 
Jefferson Laboratory, Room 356
``Coherent Phase Control of Chemical Reactions''
 
Abstract:
 
The Brumer-Shapiro method of quantum mechanical interference was used to
control the population transfer, ionization, and dissociation of various
molecules. Control was achieved by simultaneous excitation with three
photons of frequency omega_1 and one photon with frequency
omega_3=3 \omega_1. The laser intensitites were adjusted so that the
reaction rates from the two pathways were approximately equal, and
products were measured as a function of the phase difference between the
two excitation paths. This method has been applied successfully to discrete
state transitions in HCl and CO, photodissociation of CH_3I,
photoionization o f H_2S, and the competition between predissociation
and autoionization of HI and DI. In the last two cases the effect of
coupling between discrete states and the  continuum will be explored. 

DR. ROBERT GORDON
University of Illinois-Chicago
Tea will be served at 4:30 p.m.

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Thursday, March 6, 1997
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Thursday, March 6, 11:00 a.m.

Harvard-Smithsonian Center for Astrophysics
Special Colloquium 
Pratt Conference Room
``Fringe Visibility and Which-Way Knowledge: An Inequality''
 
Abstract:
 
Two-way interferometers supplemented with which-way detectors
enable us to study particle aspects or wave aspects at our
discretion. Compromises between the two aspects are subject
to a fundamental inequality that quantifies wave-particle
duality. No, it's not Heisenberg's uncertainty relation.
That has nothing to do with it.
In this context one can also answer the question:
What does a quantum eraser erase?
 
PROFESSOR BERTHOLD-GEORG ENGLERT
University of Munich

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Thursday, March 6, 12:00 p.m.

Harvard University
Colloquium 
Pierce 100F
``Non-Linear Dynamics of a Nematic Liquid Crystal in a 
Rotating Magnetic
Field''
BOB MEYER
Brandeis University

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Thursday, March 6, 1:30 p.m.

Harvard University
Materials Science Seminar 
McKay Lab, Room 402
``The Emerging Mesoscale Approach to
Polycrystalline Structure-Properties Relations''
PROFESSOR BRENT L. ADAMS
Carnegie Mellon University

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Thursday, March 6, 4:00 p.m.

Harvard-Smithsonian Center for Astrophysics
Scientific Colloquium 
60 Garden Street (Phillips Auditorium)
``Dark Matter in Ellipticals at Small and at Very Small Radii''
 
Abstract:
 
The observable kinematics of stars in galaxies
depend both on the gravitational potential in which
they orbit and on the distribution of orbital parameters.
If the orbital `anisotropy' is unknown, a wide range
of potentials is often compatible with the observed
velocities and velocity dispersions. I will report on
recent progress in measuring and modeling the detailed
velocity distribution of stars in elliptical galaxies,
which permits to constrain the orbital anisotropies
observationally. 
 
By combining these new techniques with improved data,
one can now measure robustly the masses of central black
holes. It is now also possible to assess the role of dark
matter in the inner parts of elliptical galaxies.

DR. HANS-WALTER RIX
Steward Observatory
University of Arizona
Tea will be served at 3:30 p.m.

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Thursday, March 6, 4:15 p.m.

Massachusetts Institute of Technology
Physics Colloquium 
MIT Room 10-250
``Doing Science Policy''
ERNEST J. MONIZ
Massachusetts Institute of Technology
Refreshments will be served in MIT Room 26-110 at 3:45 p.m.

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Thursday, March 6, 4:30 p.m.

Harvard University
NIGEC Seminar 
Pierce 209 (29 Oxford Street)
``HO_x in the Atmosphere: A Few Lab Studies''
DR. RAVISHANKARA
NOAA

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Friday, March 7, 1997
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Friday, March 7, 12:30 p.m.

Boston University
Condensed Matter Seminar 
Room SCI-352, Physics Dept, 590 Commonwealth Avenue
``Diffusion in Dense Interacting Lattice Gases''
PROFESSOR LUKASZ A. TURSKI
Center for Theoretical Physics, WARSAW

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Friday, March 7, 4:00 p.m.

Harvard University Division of Engineering and Applied Sciences
Friday Condensed Matter Seminar 
Pierce Hall, Room 209
``Glasslike Transition in Combined Simple Fluid''
STEVE GRANICK
University of Illinois
Refreshments will be served following the seminar
in the Brooks Room.

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A Friendly Reminder:

The Deadline for the March 9-March 15, 1997 Issue is:

MONDAY, March 3, 1997 at 11:00 a.m.

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