Hal Tasaki
Professor, Department of Physics, Gakushuin University
Switch to Japanese
fields of interest:
Theoretical Physics, Mathematical Physics, Statistical Physics
mailing address:
Department of Physics, Gakushuin University, 1718588, JAPAN
phone:
81359921107 (Faculty of Science)
fax:
81359921029 (Faculty of Science)
email:
hal.tasaki@gakushuin.ac.jp
One of the aims of physics is to elicit "universal" properties from the world we observe (in various manners), and truly "understand" them.
I have been mostly interested in various physical problems in which many (or infinitely many) degrees of freedom generate nontrivial physics, and worked on problems from such fields as statistical physics, condensed matter physics, and field theories.
I have been trying to prove mathematically rigorous results which are at the same time important and enlightening from physicists' point of view.
Main topics and their detais follow.
There is also a list of selected publications.
Photo by Namiwo Namioka

(12/31/1997)
Among my plans has been to study and understand thermodynamics deeply.
Since i will be teaching thermodyamics in the coming academic year, I have finally started studying it.
Apart from standard textbooks, I am also studying the axiomatic approach of Lieb and Yngvason (Archived as condmat/9708200.
Link to server in
US,
Italy,
Japan.), which seems quite deep.

(12/18/97)
Two reviews about the Hubbard model
 From Nagaoka's ferromagnetism to flatband ferromagnetism
and beyond: An introduction to ferromagnetism in the Hubbard model
(Archived as condmat/9712219.
Link to server in
US,
Italy,
Japan.)
 The Hubbard Model: Introduction and Selected Rigorous Results
(Archived as condmat/9512169.
Link to server in
US,
Italy,
Japan.)
are now ready.
"From Nagaoka's ferromagnetism..." is a selfcaontained review, which I hope to be readable to those who have been working on other areas of physics or mathematical physics, and are interested in the Hubbard model.
I will finish the full paper (for my letter in 1995 about the ferromagnetism in nonsingular Hubbard models) within 1998!

(12/17/97)
My first paper about the derivation of the canonical distribution from quantum dynamics was accepted for publication in Phys. Rev. Lett.
The final version is in the archive.
(Archived as condmat/9707253.
Link to server in
US,
Italy,
Japan.)

(12/16/97)
I was visiting the United States for ten days.
This was the first visit after I left Princeton nine years ago, and was quite fruitful both scientifically and personally.

Some time ago...
Hal Tasaki
Department of Physics, Gakushuin Univeristy
Tokyo, Japan
hal.tasaki@gakushuin.ac.jp
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