TY - JOUR
T1 - Functional integrals for Fermi systems without quaternions
JF - Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
JO - Proc R Soc Lond A Math Phys Sci
SP - 547
LP - 552
M3 - 10.1098/rspa.1976.0123
VL - 350
IS - 1663
AU -
Y1 - 1976/10/01
UR - http://rspa.royalsocietypublishing.org/content/350/1663/547.abstract
N2 - A system of new and convenient states suitable for developing functional integrals for Fermi systems over complex variables (thus by-passing complexities introduced by the quaternionic calculus in the treatment of such systems) is presented. By way of application, the thermodynamic potential associated with the second quantized hamiltonian H = Σk ∊ka+k ak + ½ Σk, k' a+k a+k'Vkk' ak' ak is given explicitly in the form of a power series in the fugacity of the system.
ER -