Makes circular/linear ramsey fringes numerically using RK4 integration.
Solves the equations of motion of a neutron spin in a magnetic field (Schrodinger equation).
Calculates bloch siegert shift
Change parameters in the body of the code in /src/, or write your own routines
using the functions in neutron.hpp and neutron.cpp
Executables will be found in /out/
rabi -- Applies a rabi pulse with a circular and linear RF to a neutron
ramsey -- Creates a ramsey fringe with circular or linear RF
plotRabi -- Plots a single rabi pulse plotRamsey -- Plots a ramsey fringe
Requirements: cmake, BOOST (only tested 1.58.0)
Python plotting dependencies:
The Boost C++ libraries are used for some fitting.
Boost is included in most Linux OSs; should you need to download and compile it manually,
you may have to adjust the search path of cmake by calling cmake with -DBOOST_ROOT=/path/to/boost.
$ cmake .
$ make
and then run the executable of your choice in /out/
If you write your own routines and want stuff to compile, edit CMakeLists.txt
and add add_executable and target_link_libraries flags
Parameters for test run of ramsey fringes at Los Alamos Nat. Lab nEDM search
B_0 = 1 uT
B_l = 4 nT
Precession = 180s
gyromagnetic ratio of the neutron (y)
1.832 471 72 x 10^8 rad s^-1 T^-1
w0 = - 183.247
wl = - 0.732989
Approximate pulse time for ramsey resonance: 4.286 seconds
Equations in comments are in reference to this thesis