function [Params] = SetupParameters()

%%--%% Parameters %%--%%

%========= Simulation =========%
pert = 0;     % 0 = no perturbation during real-time, 1=perturbation
%method=1;    % 0 = normal dipolar potential, 1=spherical cut-off, 2=cylindrical cut-off

% Tolerances
Params.Etol    = 5e-10;
Params.rtol    = 1e-5;
Params.cut_off = 2e6;  % sometimes the imaginary time gets a little stuck
                       % even though the solution is good, this just stops it going on forever

%========= Constants =========%
hbar      = 1.0545718e-34;           % Planck constant [J.s]
kbol      = 1.38064852e-23;          % Boltzmann Constant [J/K]
mu0       = 1.25663706212e-6;        % Vacuum Permeability [N/A^2]  --
muB       = 9.274009994e-24;         % Bohr Magneton [J/T]
a0        = 5.2917721067e-11;        % Bohr radius [m]
m0        = 1.660539066e-27;         % Atomic mass [kg]
w0        = 2*pi*100;                % Angular frequency unit [s^-1]
mu0factor = 0.3049584233607396;      % =(m0/me)*pi*alpha^2 -- me=mass of electron, alpha=fine struct. const.
                                     % mu0=mu0factor *hbar^2*a0/(m0*muB^2)
%=============================%

% Number of points in each direction
Params.Nx = 64;
Params.Ny = 64;
Params.Nz = 48;

% Dimensions (in units of l0)
Params.Lx = 40;
Params.Ly = 40;
Params.Lz = 20;

% Masses
Params.m = 164*m0;
l0       = sqrt(hbar/(Params.m*w0)); % Defining a harmonic oscillator length

% Atom numbers
% Params.ppum = 2500;                % particles per micron
% Params.N = Params.Lz*Params.ppum*l0*1e6;
Params.N       = 10^6;

% Dipole angle
Params.theta   = pi/2; % pi/2 dipoles along x, theta=0 dipoles along z 

% Dipole lengths (units of muB)
Params.mu      = 9.93*muB;

% Scattering lengths
Params.as      = 86*a0;

% Trapping frequencies
Params.wx = 2*pi*125;
Params.wy = 2*pi*125;
Params.wz = 2*pi*250;

% Time step
Params.dt    = 0.0005;
Params.mindt = 1e-6; %Minimum size for a time step using adaptive dt

% Stochastic GPE
Params.gamma_S = 7.5*10^(-3);        % gamma for the stochastic GPE 
Params.muchem  = 12.64*Params.wz/w0; % fixing the chemical potential for the stochastic GPE 

% ================ Parameters defined by those above ================ %

% Contact interaction strength (units of l0/m)
Params.gs = 4*pi*Params.as/l0;

% Dipole lengths
Params.add = mu0*Params.mu^2*Params.m/(12*pi*hbar^2);

% DDI strength
Params.gdd = 12*pi*Params.add/l0; %sometimes the 12 is a 4? --> depends on how Vdk (DDI) is defined

% Trap gamma
Params.gx=(Params.wx/w0)^2;
Params.gy=(Params.wy/w0)^2;
Params.gz=(Params.wz/w0)^2;

% == Calculating quantum fluctuations == %
eps_dd = Params.add/Params.as;
if eps_dd == 0
    Q5 = 1;
elseif eps_dd == 1
    Q5 = 3*sqrt(3)/2;
else
    yeps = (1-eps_dd)/(3*eps_dd);
    Q5 = (3*eps_dd)^(5/2)*( (8+26*yeps+33*yeps^2)*sqrt(1+yeps) + 15*yeps^3*log((1+sqrt(1+yeps))/sqrt(yeps)) )/48;
    Q5 = real(Q5);
end

Params.gammaQF = 128/3*sqrt(pi*(Params.as/l0)^5)*Q5;

% Loading the rest into Params
Params.hbar = hbar; Params.kbol = kbol; Params.mu0 = mu0; Params.muB = muB; Params.a0 = a0;
Params.w0 = w0; Params.l0 = l0;
end