[Kevin Cahill] [Kevin Cahill] 


Particle Physics


Kevin Cahill does quantum field theory
and lattice gauge theory.


 A paper by Mario Serna and him,
"Riemannian Gauge Theory and Charge Quantization,"
published as JHEP 10 (2003) 054,
is available as  0205250.pdf.


Cahill's paper, "Supersymmetry without Grassmann Variables,"
published as JHEP 06(2001)002,
is available in    pdf
and   postscript formats.

His paper "Quark-Antiquark Condensates Break Chiral Symmetry"
is available in postscript 
  cbcshg7.ps 
and pdf  cbcshg7.pdf  formats.


 A principally pedagogical 77-page work-in-progress 
on supersymmetry is available in its web form 
as a postscript file 
  hep-ph/9907295.ps 
and in its most recently updated form 
as both a postscript file
  ss.ps
and a pdf file   ss.pdf.


 The paper, "Toward a Neutrino Mass Matrix,"
Int.  J. Mod. Phys.  A 16 (2001) 712,
is available as a postscript file  
0011022.ps
and as a pdf file  0011022.pdf.


 The paper, "Neutrinos Are Nearly Dirac Fermions,"
is available
as a postscript file   numas.ps
and as a pdf file   numas.pdf.

 A paper on the use of vectors in gauge theory
is available as a postscript file   v.ps
and as a pdf file   v.pdf.

A paper by Prof. Gary Herling and Cahill,
"Lattice Effective Actions and Light-Quark Confinement,"
published as Nucl. Phys. B (Proc. Suppl.) 73 (1999) 886, 
is available both as a   postscript file
and as a   pdf file.

A paper by Herling and Cahill,
"Confinement Artifacts in the U(1) and SU(2)
Compact Lattice Gauge Theories," 
is also available both as a   postscript file
and as a   pdf file.


A paper by Prof. Roy J. Glauber
and Cahill, "Density Operators for Fermions,"
Phys. Rev. A59, 1538 (1999),
is available as a   PRA postscript file,
as our   postscript file,
as a   pdf file,
and as a   tex file.

Some of his other publications are listed
in his curriculum vitae,
which is available both
as a   postscript file
and as a   pdf file.


Computational Biology


 Kevin Cahill's paper "Alternative Splicing
and Genomic Stability" has been published:
Physical Biology 1 (#2) (2004) C1--C4.


 A paper by V. Adrian Parsegian and Kevin Cahill 
entitled "Computational Consequences of Neglected 
First-Order van der Waals Forces" is available
as the pdf file 
  
arXiv:q-bio/0312005.
The fortran-90 codes for the computation
of latent heats of vaporization are 
here.


 A paper by Sean, Michael, and Kevin Cahill 
entitled "On the Kinematics of Protein Folding"
is available in pdf  0205043.pdf
and postscript  0205043.ps formats.
This article has appeared in the Journal of 
Computational Chemistry; the published version is
  
J. Comp. Chem. 24 (#11): 1364--1370, 2003.


Michael, Sean, and Kevin Cahill
have written a paper, "Proteins Wriggle,"
about the kinetics of protein folding;
it is available in    pdf
and   postscript formats.
A pdf file of the published version is   
Biophys. J. 82 (#5) 2665-2670 (2002).


 The Fortran-90 codes that implement
and test the wriggling algorithm are available in the 
directory  
 wriggle .


Michael Cahill, Mark Fleharty, and Kevin
Cahill have written codes that simulate how
proteins fold.  
Their goal is to predict
the three-dimensional native structures
of globular proteins
from the DNA sequences 
that define them.
A paper of theirs, "Simulations of Protein Folding,"
is available as a  
Nucl. Phys. B (Proc. Suppl.) 83-84 (2000) 929 file.

Medical Research


He also does research 
in medicine with Dr. Anthony Smith.
This research is mainly
on prostate cancer.
He has written a CGI web page 
PSAwhich physicians can use to compute
the doubling time
of a patient's prostate cells
from two or more psa assays.


Teaching


    


  1. Mathematical Methods for Theoretical Physics (466-001)

     Fall 2003 Tuesdays and Thursdays from 17:45 to 19:00 in room 184.
My e-mail address is 
cahill@unm.edu.
My office is room 176, and my phone number is 277-5318.
My office hours are by appointment.
But in fact whenever you see me, I am available
for questions about this course.

    


     The grader is Mr. Ramesh Babu Laghumavarapu.
His e-mail address is 
laghu77@unm.edu.
    


     Further information about this course is available
at 
466-03.
    


  2. Adv. Seminar - Biophysics (500-003)
Further information about this course is available
at 
500-003.
    


  3. Quantum Mechanics (522-001)

     Spring 2002 Tuesdays and Thursdays from 17:30 to 18:45 in room 184.
My e-mail address is 
kevin@kevin.phys.unm.edu.
My office is room 176, and my phone number is 277-5318.
My office hours are from 4pm to 6pm on Mondays and Wednesdays
and by appointment.
But in fact whenever you see me, I am available
for questions about quantum mechanics.

    

    
The grader is Ms. Sonja Daffer.
Her e-mail address is 
sonjad@phys.unm.edu.
Her office is room 30, and her phone number is 277-8800.
Her office hours are 4:30-5:30pm on Thursdays
and by appointment.
    


     Text: Modern Quantum Mechanics by J.J. Sakurai
(Addison Wesley, latest printing of latest revision).
Mike Nord suggests that students think about buying
the book for $40-$45 or so including fast shipping
from 
 www.alphabetstreet.infront.co.uk.
They ship the latest printing of the latest edition
in mint condition.
Gavin Brennan points us to an American bookseller

 www.gohastings.com
that is competitive 
with alphabetstreet
and that offers quicker delivery -- 72 hours.
    


     Homework due Thursday, January 31st:
Problems 24, 27, 28, and 29 of Chapter 3.
Some hints for these problems are available 
in the postscript file
  hints7.ps 
and in the pdf file
  hints7.pdf.
    

     Homework due Thursday, February 21st:
Problems 1, 2, 5, 6, 7, 11, and 12 of Chapter 4.
Some hints for these problems are available 
in the postscript file
  hints8.ps 
and in the pdf file
  hints8.pdf.
    

     Homework due Thursday, March 21st:
Problems 30, 33, 34, 38, and 40 of Chapter 5.
Some hints for these problems are available 
in the postscript file
  hints9.ps 
and in the pdf file   hints9.pdf.
    

     Homework due Thursday, April 18th:
Problems 1, 2, 3, 4, and 5 of Chapter 6
and the extra problem described 
in the postscript file
  hints10.ps and in the pdf file
  hints10.pdf.
    

     Homework due Thursday, May 2d:
Problem 6 of Chapter 6, problem 2 of Chapter 7,
and the extra problems described 
in the postscript file
  hints11.ps and in the pdf file
  hints11.pdf,
which do contain several hints.
    


  4. Quantum Mechanics (521-001)

     Fall 2001 Tuesdays and Thursdays from 17:30 to 18:45 in room 184.
My e-mail address is 
cahill@unm.edu.
My office is room 176, and my phone number is 277-5318.
My office hours are by appointment.
But for practical purposes,
I am available
for questions about quantum mechanics
whenever you see me in the building.
    
The grader is Ms. Sonja Daffer.
Her e-mail address is 
sonjad@phys.unm.edu,
and her phone number is 277-8800.
Her office is in room 30, 
but she sometimes works in the library.
Her office hours are by appointment.
    


     Text: Modern Quantum Mechanics by J.J. Sakurai
(Addison Wesley, 1994, ISBN: 0201539292).
Students should obtain the latest printing
of the latest edition of this book.
It should be available at the UNM bookstore.
Students might check 
 www.gohastings.com,

 www.ecampus.com,

 www.alphabetstreet.infront.co.uk, 

 www.barnesandnoble.com,  

 www.amazon.com, as well as local booksellers
for better prices.
Ecampus offers deep discounts and free shipping.
    


     Homework due 6 September 2001: 
problems 1, 2, 3, 5, and 6 of Chapter 1.
Some hints for these problems are available 
in the postscript file
  hints1.ps and in the pdf file
  hints1.pdf.
    

     Homework due 9/20/01: problems 8, 9, 10, 12, 13, and 14 of Chapter 1.
Some hints for these problems are available
in the postscript file
  hints2.ps 
and in the pdf file
  hints2.pdf.
    

    To compensate for the class of 9/11
which was canceled by bin Laden,
there will be a make-up class on Saturday
September 22d from 3:30 to 4:45 pm.
    

     Homework due 10/4/01: problems 3, 4, 5, 6, 9, 11, 
and 16 of Chapter 2.
Some hints for these problems are available
in the postscript file
  hints3.ps 
and in the pdf file
  hints3.pdf.
    

     The midterm exam will be during
the regular class period on Tuesday,
16 October 2001.
    

     Homework due 10/25/01: problems 18, 20, 24, 34, 35, and 36 
of Chapter 2.
Some hints for these problems are available
in the postscript file
  hints4.ps
and in the pdf file
  hints4.pdf.
    

     On the midterm exam, four students 
received grades above 90%; four scored
between 65% and 80%; and six were below 60%.
Those in the second two groups should
study much harder.  They are invited to take
a second midterm exam
on Sunday afternoon, October the 28th.
    

     Homework due Thursday 11/20/01: problems 1, 2, 3, 4, 11, 12, 
and 18 of Chapter 3.
Some hints for these problems are available
in the postscript file
  hints5.ps
and in the pdf file
  hints5.pdf.
    

     Homework due Thursday 12/06/01: 
problems 20 and 21 of Chapter 3 
and problems 1, 4, 7, 8, 13, and 18
of Chapter 5.
Some hints for these problems are available
in the postscript file
  hints6.ps
and in the pdf file
  hints6.pdf.
    

     A copy of the 1999 final examination
for this course is available
in the postscript file
  final99.ps
and in the pdf file
  final99.pdf.
    


  5. Quantum Field Theory (523-001)

     Fall 2000 Mondays and Wednesdays from 17:30 to 18:45 in room 184.

    

     Text: Volume I of The Quantum Theory of Fields
by Steven Weinberg (Cambridge University Press 1995,
reprinted with corrections in 1996, 1998, and 1999
ISBN 0-521-55001-7, $59.95).
Students should obtain the latest printing
of the latest edition of this book.
This textbook should be available at the UNM bookstore.
Students might check 
 www.gohastings.com,

 www.ecampus.com,

 www.alphabetstreet.infront.co.uk, 

 www.barnesandnoble.com,  

 www.amazon.com, as well as local booksellers
and 
 Cambridge University Press 
for better prices.
Ecampus offers deep discounts and free shipping.
Amazon, B&N, and many other web bookstores
charge more than $4 for shipping a single light book.

    


     The first chapter of Weinberg's book
is on the history of quantum field theory.
Students should read this chapter
before or shortly after the start of classes.
    

     Homework: Do problems 2.0, 2.1, and 2.2 by September 27th.
    
You may find problem 2.0 and some hints 
for problems 2.1 and 2.2 in the postscript file
  set1.ps 
and in the pdf file
  set1.pdf. 
    
Do problems 5.0 and 5.1 by November the 9th.
    
You may find problem 5.0 and some hints
for problem 5.1 in the postscript file
  set2.ps 
and in the pdf file
  set2.pdf. 
    
By December 11th, do the set of coherent-state problems 
described in the postscript file
  set3.ps 
and in the pdf file
  set3.pdf. 
    
The last lecture will be at 7:45 pm on Monday,
11 December 2000, in room 184.  

     

     Students who wish copies of the homework solutions
should send me their e-mail addresses.
    


  6. Quantum Mechanics (522-001)

     Spring 2000 Tuesdays and Thursdays from 17:30 to 18:45 in room 184.
My e-mail address is 
kevin@kevin.phys.unm.edu.
My office is room 176, and my phone number is 277-5318.
My office hours are from 4pm to 6pm on Mondays and Wednesdays
and by appointment.
But in fact whenever you see me, I am available
for questions about quantum mechanics.

    

    
The grader is Ms. Sonja Daffer.
Her e-mail address is 
sonjad@phys.unm.edu.
Her office is room 30, and her phone number is 277-8800.
Her office hours are 4:30-5:30pm on Thursdays
and by appointment.
    


     Text: Modern Quantum Mechanics by J.J. Sakurai
(Addison Wesley, latest printing of latest revision).
Mike Nord suggests that students think about buying
the book for $40-$45 or so including fast shipping
from 
 www.alphabetstreet.infront.co.uk.
They ship the latest printing of the latest edition
in mint condition.
Gavin Brennan points us to an American bookseller

 www.gohastings.com
that is competitive 
with alphabetstreet
and that offers quicker delivery -- 72 hours.
    


     Homework due Thursday, February 10th:
Problems 20, 21, 24, 27, 28, and 29 of Chapter 3.
Some hints for these problems are available 
in the postscript file
  hints7.ps 
and in the pdf file
  hints7.pdf.
    

     Homework due Thursday, March 2d:
Problems 1, 2, 5, 6, 7, 11, and 12 of Chapter 4.
Some hints for these problems are available 
in the postscript file
  hints8.ps 
and in the pdf file
  hints8.pdf.
    

     Homework due Tuesday, April 4th:
Problems 30, 33, 34, 38, and 40 of Chapter 5.
Some hints for these problems are available 
in the postscript file
  hints9.ps 
and in the pdf file   hints9.pdf.
    

     Homework due Thursday, April 20th:
Problems 1, 2, 3, 4, and 5 of Chapter 6
and the extra problem described 
in the postscript file
  hints10.ps and in the pdf file
  hints10.pdf.
    

     Homework due Thursday, May 11th:
Problem 6 of Chapter 6, problem 2 of Chapter 7,
and the extra problems described 
in the postscript file
  hints11.ps and in the pdf file
  hints11.pdf,
which do contain several hints.
    

     The last lecture will at 7:45 pm on Thursday, 11 May 2000,
in room 184.
    

     The final total scores were: (96.21% & 94.83%) = A+,
(89.31% & 88.28%) = A, (82.41% & 79.31%) = A-,
71.03% = B+, and one WP.
    


  7. Quantum Mechanics (521-001)

     Fall 1999 Tuesdays and Thursdays from 17:30 to 18:45 in room 184.
My e-mail address is 
kevin@kevin.phys.unm.edu.
My office is room 176, and my phone number is 277-5318.
My office hours are from 4pm to 6pm on Mondays and Wednesdays
and by appointment.
But in fact whenever you see me, I am available
for questions about quantum mechanics.

    

    
The grader is Mr. Neal Phillips.
His e-mail address is 
velkro@unm.edu.
His office is room 30, and his phone number is 277-8800.
His office hours are from 8 am to 10:30 am on Tuesdays and Thursdays.
    

  

     Text: Modern Quantum Mechanics by J.J. Sakurai
(Addison Wesley, latest printing of latest revision).
Mike Nord suggests that students think about buying
the book for $40-$45 or so including fast shipping
from 
 www.alphabetstreet.infront.co.uk.
They ship the latest printing of the latest edition
in mint condition.
Gavin Brennan points us to an American bookseller

 www.gohastings.com
that is competitive with alphabetstreet
and that offers quicker delivery -- 72 hours.
    

     Students wishing to get a head start should read
the first chapter.
    

     Some notes on Julian Schwinger's algebra of 
measurement symbols
are available both as a 
  postscript file
and as a   pdf file.
    


     Homework due 9/9/99: problems 1, 2, 3, 5, and 6 of Chapter 1.
Some hints for these problems are available 
in the postscript file
  hints1.ps and in the pdf file
  hints1.pdf.
    

     Homework due 9/23/99: problems 8, 9, 10, 12, 13, and 14 of Chapter 1.
Some hints for these problems are available
in the postscript file
  hints2.ps 
and in the pdf file
  hints2.pdf.

    

     Homework due 10/7/99: problems 3, 4, 5, 6, 9, 11, and 16 of Chapter 2.
Some hints for these problems are available
in the postscript file
  hints3.ps 
and in the pdf file
  hints3.pdf.

    


     Mid-term examination: 12 October 1999 during class.

    

     Homework due 10/28/99: problems 18, 20, 24, 34, 35, and 36 
of Chapter 2.
Some hints for these problems are available
in the postscript file
  hints4.ps
and in the pdf file
  hints4.pdf. 

    

     Homework due 11/18/99: problems 1, 2, 3, 4, 11, 12, and 18
of Chapter 3.
This assignment is postponed until the 18th.
Some hints for these problems are available
in the postscript file
  hints5.ps
and in the pdf file
  hints5.pdf. 

    

     Homework due 12/9/99: problems 1, 4, 7, 8, 13, and 18
of chapter 5.
Some hints for these problems are available
in the postscript file
  hints6.ps
and in the pdf file
  hints6.pdf. 

    

     The make-up class will be held on Monday, December 6th,
from 4:15 until 5:30 pm in room 184.

    

     The final exam is on Thursday, December 16th, in room 184
from 5:30 pm until we all go home.

    


  8. Quantum Field Theory (524-001)

     Spring 1999 Tuesdays and Thursdays from 17:30 to 18:45 in room 184.

    

     Text: Volume I of The Quantum Theory of Fields
by Steven Weinberg (Cambridge University Press 1995,
reprinted with corrections 1996
and again in 1998, ISBN 0 521 55001 7).
    

     We start with a review of Feynman diagrams
in Chapter 6.
    

     Homework: Do problem 6.1 by February the 4th.
Homework: Do problem 6.2 by February the 11th.
Homework: Do problem 6.3 by February the 18th.
Homework: Do problem 8.1 by April the 8th.
Use the center-of-mass frame.
    

     Students who wish copies of the homework solutions
should send me their e-mail addresses.
    


  9. Quantum Field Theory (523-001)

     Fall 1998 Tuesdays and Thursdays from 17:30 to 18:45 in room 184.

    

     Text: Volume I of The Quantum Theory of Fields
by Steven Weinberg (Cambridge University Press 1995,
reprinted with corrections 1996, ISBN 0 521 55001 7).
    

     The first chapter of Weinberg's book
is on the history of quantum field theory.
Students should read this chapter
before or shortly after the start of classes.
    

     Homework: Do problems 2.1 and 2.2 by October the 8th.
Homework: Do problem 3.1 by October the 29th.
Homework: Do problem 5.1 by December the 1st.
    

     Students who wish copies of the homework solutions
should send me their e-mail addresses.

     Mechanics.  The solutions for x1(t) and x2(t) are available
as a   postscript file.
A derivation of these solutions is given in the
  postscript file.
    


  10. Quantum Mechanics (522-001)

     Spring 1998 Tuesdays and Thursdays from 17:30 to 18:45 in room 184 
    

     Text:  Quantum Mechanics by C. Cohen-Tannoudji,
B. Diu, and F. Laloe (Wiley Interscience, 1977) Volume II
    

     The homework assignments are:

    1.  VIII (C) 3a and 3b due 19 February 1998.
Postcript files of the solutions to 
 ex8.3a 
and to   ex8.3b are available.

    2.  IX (B) 1 and 2 due 10 March 1998.
Postcript files of the solutions to 
 ex9.1
and to   ex9.2 are available.

    3.  X (G) 1-4 due 26 March 1998.

    4.  XI (H) 1-2 due 14 April 1998.

    5.  XIII (E) 1-4 due 1 May 1998.

    6.  XIV (D) 1-2 due 8 May 1998.

    7.  Take-home exam: problems 2-1 and 2-3a of Sakurai's
book Advanced Quantum Mechanics.

    


  11. Quantum Mechanics (521.001)

     Fall 1997 Tuesdays and Thursdays from 17:30 to 18:45 in room 184 
    

     Text:  Quantum Mechanics by C. Cohen-Tannoudji,
B. Diu, and F. Laloe (Wiley Interscience, 1977)  Volume I
    

     The homework assignments are:

    1.  I 1 and II 2-5 due 16 September 1997.

    2.  I 2 and II 8-9 due 30 September 1997.

    3.  I 3 and III 3-5 due 13 October 1997. 

    4.  I 4 and III 6, 7, 9, 11 due 27 October 1997. 

    5.  III 13, 14, 16 and IV 2 due 11 November 1997. 

    6.  IV 3, 4, 8 and V 1 due 25 November 1997.

    7.  V 2, 4 and VI 1, 2 due 9 December 1997.
    

  12. Physics for Science Haters (102.001) 

     Fall 1996 and Spring 1997 Regener 103
    

  13. Seminar on Supersymmetry (500.001) 

     Spring 1997 in room 184.
Some of the class notes are available
both as a   postscript file
and as a   latex file.