I attached the paper here.if you plot these equations , the result will be figure 1 in the paper . i need the matlab code.
% equation number 11 code
% Define the equation
theta = linspace(0, 2*pi, 1000);
E = linspace(Delta(0), 10, 1000); % Assuming a range for E values
Delta_0 = 1; % Assuming a value for Delta(0)
n = 1; % Assuming a value for n
n_s_T = 1; % Assuming a value for n_s(T)
% Calculate the integrals
cos_theta = cos(theta).^4;
integral_theta = trapz(theta, cos_theta);
integral_E = zeros(size(E));
for i = 1:length(E)
if E(i) > Delta_0
integral_E(i) = E(i) / sqrt(E(i)^2 - Delta_0^2);
end
integral_E = trapz(E, integral_E);
% Calculate bx
bx = -2/3 * Delta_0^2 * (n / n_s_T)^3 * integral_theta * integral_E;
% Plot the equation
figure;
plot(E, bx * ones(size(E)), 'LineWidth', 2);
xlabel('E');
ylabel('b_x');
title('Plot of b_x');
grid on;
% % % % % % % % % % % % % % % % %
%Make sure to adjust the default values for variables like Delta(0), n, and
%n_s(T) based
% % % % % % % % % % % % % % % % % %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% equation number 12 code
% Define constants and functions
n_s_0 = 1; % Assuming a value for n_s(0)
theta_i = pi/4; % Assuming a value for theta_i
% Define theta range
% Calculate the first integral
integral_theta = trapz(theta, cos_theta) / (2*pi);
% Define E range
E = linspace(Delta_0, 10, 1000); % Assuming a range for E values
% Calculate the second integral
integral_E(i) = E(i) / (E(i)^2 - Delta_0^2)^(3/2);
% Calculate b_xy
b_xy = -1/3 * Delta_0^2 * (n_s_T / n_s_0)^3 * integral_theta + ...
3 * cos(theta_i)^2 * sin(theta_i)^2 * integral_E;
plot(theta, b_xy * ones(size(theta)), 'LineWidth', 2);
xlabel('Theta (θ)');
ylabel('b_{xy}');
title('Plot of b_{xy}');
% Make sure to adjust the default values for variables like Delta(0), n_s(T),
% n_s(0), and theta_i based on your actual values.
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