scholarly journals Complex spectrum of finite-density lattice QCD with static quarks at strong coupling

2016 ◽  
Vol 93 (9) ◽  
Author(s):  
Hiromichi Nishimura ◽  
Michael C. Ogilvie ◽  
Kamal Pangeni
Keyword(s):  
Lattice Qcd ◽  
Strong Coupling ◽  
Complex Spectrum ◽  
Finite Density

INDICATIONS OF A ΔI=1/2 RULE IN THE STRONG COUPLING REGIME

1988 ◽  
Vol 03 (06) ◽  
pp. 1385-1412
Author(s):  
IAN G. ANGUS
Keyword(s):  
Lattice Qcd ◽  
Strong Coupling ◽  
Computer Algebra ◽  
Free Parameter ◽  
Hamiltonian Formalism ◽  
Strong Coupling Expansion ◽  
Calculation Scheme ◽  
Strong Coupling Regime ◽  
Weak Decays ◽  
The One

We will attempt to understand the ΔI=1/2 pattern of the nonleptonic weak decays of the kaons. The calculation scheme employed is the Strong Coupling Expansion of lattice QCD. Kogut-Susskind fermions are used in the Hamiltonian formalism. We will describe in detail the methods used to expedite this calculation, all of which was done by computer algebra. The final result is very encouraging. Even though an exact interpretation is clouded by the presence of irrelevant operators, and questions of lattice artifacts, a signal of the ΔI=1/2 rule appears to be observable. With an appropriate choice of the one free parameter, enhancements greater than those observed experimentally can be obtained. We also point out a number of surprising results which we turn up in the course of the calculation.

scholarly journals Phase fluctuation of fermion determinant in lattice QCD at finite density

2004 ◽  
Vol 129-130 ◽  
pp. 539-541 ◽  
Author(s):  
Yuji Sasai ◽  
Atsushi Nakamura ◽  
Tetsuya Takaishi
Keyword(s):  
Lattice Qcd ◽  
Phase Fluctuation ◽  
Finite Density

scholarly journals A simple idea for Lattice QCD at finite density

2015 ◽  
Author(s):  
Rajiv V. Gavai ◽  
Sayantan Sharma
Keyword(s):  
Lattice Qcd ◽  
Finite Density ◽  
Simple Idea
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