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Table 1 Standard parameter values used in the study

From: A master stability function approach to cardiac alternans

  Definition Value
T Temperature 308 K
F Faraday’s constant 96.4867 C/mmol
R Gas constant 8.314 J/K mol
Na o External sodium concentration 140 mM
Ca o External calcium concentration 1.8 mM
vs/vi Subsarcolemmal/cell volume 0.1
v up Uptake strength 270 μM/s
\(\bar {I}_{\textrm {NaCa}}\) Strength of the NaCa exchanger 105μM/s
K mNa Constant from the 1994 Luo-Rudy model 87.5 mM
K mCa Constant from the 1994 Luo-Rudy model 1.38 mM
P Ca Constant from the 1994 Luo-Rudy model 5.4×10−4 cm/s
i Ca Flux constant 11000 μmol/C cm
γ o Constant from the 1994 Luo-Rudy model 0.341
g Release current strength 3.5×104 sparks/ μM
k Release slope 11.3 s −1
τ r Average spark life time 20 ms
τ a Relaxation time of cu to cj 50 ms
τ s Submembrane diffusion time constant 10 ms
β s Buffering constant for cs 0.5
β i Buffering constant for ci 0.01