tiopt

tiopt is a C/Fortran-based program which simulates ion traps and ion transport, with the goal of optimizing trap design, transport waveforms, and ion control. It aims to enable all of the following in one tool:

• Construct a seed trap design from presets, consisting of electrodes and (optionally) integrated photonics and electronics
• Simulate trap components (e.g. electrodes, waveguide unit cells)
• Represent electric potentials of electrodes using spherical harmonic expansions
• Obtain curve fits of parameters of photonic components
• Simulate ion transport via robust symplectic integration
• Simulate ion-photon interactions during laser pulses
• Analyze various aspects of ion control based on experiment data
• Optimize all aspects of trap geometry, transport waveforms, and ion addressing based on analysis

Installation

Unix-based systems

1. Install the required dependencies based on your distribution (this is based on Ubuntu)
   • Git
   • gcc (this is our c compiler)
   • make
   • gfortran
   • libgsl-dev
   • libfftw3-dev
   • libnlopt-dev
   • libblas-dev
   • liblapack-dev
   • libopenblas-dev
2. Clone repositories
   • Make a new folder and clone the following repositories into that folder

   git clone https://github.com/SHTOOLS/SHTOOLS.git
   git clone https://github.com/RasmitDevkota/shtools_wrapper.git
   git clone https://github.com/RasmitDevkota/shtools_wrapper.git
   

3. Build and install SHTOOLS
   • Enter the SHTOOLS directory in the terminal
   • Build the Fortran version

   make fortran
   

   • Install SHTOOLS

   sudo make install
   

4. Build shtools_wrapper
   • Enter the shtools_wrapper directory in the terminal
   • Open the file called "makefile" in shtools_wrapper using any code editor
   • Remove the following lines of code

   SHTOOLS_SRC = /home/rasmitdevkota/projects/SHTOOLS/src
   SHTOOLS_LIB = /home/rasmitdevkota/projects/SHTOOLS
   

   • Replace the removed lines of code with the following

   SHTOOLS_SRC = /usr/local/include
   SHTOOLS_LIB = /usr/local/lib
   

   • Save the file
   • Build the wrapper

   sudo make
   

5. Build Tiopt
   • Enter the tiopt directory
   • To clean any previous build files, run

   make clean
   

   • Build tiopt

   make
   

   • Now, there should be an executable file called tiopt.
6. Run Tiopt
   • Run the executable

   ./tiopt