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more::phys::BCS_solver Class Template Reference

A solver of the Bardeen–Cooper–Schrieffer (BCS) equations. More...

#include <more/phys/bcs.h>

Collaboration diagram for more::phys::BCS_solver:

[legend]List of all members.

Public Types

• typedef T real_type
• typedef energy_container::size_type size_type

Public Methods

• BCS_solver (int N, real_type G, real_type cut_low, real_type cut_high, real_type cut_width)
• BCS_solver (int N, real_type G)
• BCS_solver ()
• void set_coupling_strength (real_type G)

  Set the coupling strength. More...
  
  

• real_type coupling_strength () const

  Return the coupling strength. More...
  
  

• void set_occupied_count (size_type n)

  Set the number of occupied states = the number of particles. More...
  
  

• real_type occupied_count () const

  Return the number of occupied states. More...
  
  

• void set_precision (real_type prec)

  Set the wanted precision for Δ and λ. More...
  
  

• real_type precision () const

  Return the precision. More...
  
  

• void set_smooth_cutoff (real_type cut_low, real_type cut_high, real_type cut_width)

  Enable smooth cut to window with energies from cut_low to cut_high, bondaries being smeared over a range cut_width. More...
  
  

• bool smooth_cut (real_type &cut_low, real_type &cut_high, real_type &cut_width)

  If doing smooth cut, return true and return the details in the arguments, else return false. More...
  
  

• void solve ()
• template<typename Iterator> void solve (Iterator first, Iterator last)

  Take the energy levels and solve the BCS equations. More...
  
  

• real_type sqr_v (real_type epsilon)

  Return $v$ for the given energy. More...
  
  

• real_type sqr_u (real_type epsilon)

  Return $u$ for the given energy. More...
  
  

• void write_to (std::ostream &out) const
• real_type pairing_energy ()

  Return the pairing energy. More...
  
  

• real_type pairing_Delta ()

  Return the pairing gap Δ. More...
  
  

• real_type Fermi_energy ()

  Return the Fermi energy λ. More...
  
  

• real_type cut_function (real_type epsilon)
• void be_verbose (bool value=true)

  Show each step of the iteration iff value is true. More...
  
  

• bool is_verbose () const

  Return the value of the verbosity option. More...
  
  

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Detailed Description

template<typename T>
class more::phys::BCS_solver< T >

A solver of the Bardeen–Cooper–Schrieffer (BCS) equations.

Energy

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Member Typedef Documentation

template<typename T> typedef T more::phys::BCS_solver::real_type

template<typename T> typedef energy_container::size_type more::phys::BCS_solver::size_type

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Constructor & Destructor Documentation

template<typename T> more::phys::BCS_solver< T >::BCS_solver (  int    N, real_type    G, real_type    cut_low, real_type    cut_high, real_type    cut_width )  [inline]

template<typename T> more::phys::BCS_solver< T >::BCS_solver (  int    N, real_type    G )  [inline]

template<typename T> more::phys::BCS_solver< T >::BCS_solver (    )  [inline]

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Member Function Documentation

template<typename T> void more::phys::BCS_solver< T >::be_verbose (  bool    value = true )  [inline]

Show each step of the iteration iff value is true.

template<typename T> real_type more::phys::BCS_solver< T >::coupling_strength (    )  const [inline]

Return the coupling strength.

template<typename T> real_type more::phys::BCS_solver< T >::cut_function (  real_type    epsilon )  [inline]

template<typename T> real_type more::phys::BCS_solver< T >::Fermi_energy (    )  [inline]

Return the Fermi energy λ. Precondition: The equations are solved.

template<typename T> bool more::phys::BCS_solver< T >::is_verbose (    )  const [inline]

Return the value of the verbosity option.

template<typename T> real_type more::phys::BCS_solver< T >::occupied_count (    )  const [inline]

Return the number of occupied states.

template<typename T> real_type more::phys::BCS_solver< T >::pairing_Delta (    )  [inline]

Return the pairing gap Δ. Precondition: The equations are solved.

template<typename T> real_type more::phys::BCS_solver< T >::pairing_energy (    )  [inline]

Return the pairing energy. Precondition: The equations are solved.

template<typename T> real_type more::phys::BCS_solver< T >::precision (    )  const [inline]

Return the precision.

template<typename T> void more::phys::BCS_solver< T >::set_coupling_strength (  real_type    G )  [inline]

Set the coupling strength.

template<typename T> void more::phys::BCS_solver< T >::set_occupied_count (  size_type    n )  [inline]

Set the number of occupied states = the number of particles.

template<typename T> void more::phys::BCS_solver< T >::set_precision (  real_type    prec )  [inline]

Set the wanted precision for Δ and λ.

template<typename T> void more::phys::BCS_solver< T >::set_smooth_cutoff (  real_type    cut_low, real_type    cut_high, real_type    cut_width )

Enable smooth cut to window with energies from cut_low to cut_high, bondaries being smeared over a range cut_width.

template<typename T> bool more::phys::BCS_solver< T >::smooth_cut (  real_type &    cut_low, real_type &    cut_high, real_type &    cut_width )

If doing smooth cut, return true and return the details in the arguments, else return false.

template<typename T> template<typename Iterator> void more::phys::BCS_solver< T >::solve (  Iterator    first, Iterator    last )  [inline]

Take the energy levels and solve the BCS equations.

template<typename T> void more::phys::BCS_solver< T >::solve (    )

template<typename T> real_type more::phys::BCS_solver< T >::sqr_u (  real_type    epsilon )  [inline]

Return $u$ for the given energy. Precondition: The equations are solved.

template<typename T> real_type more::phys::BCS_solver< T >::sqr_v (  real_type    epsilon )  [inline]

Return $v$ for the given energy. Precondition: The equations are solved.

template<typename T> void more::phys::BCS_solver< T >::write_to (  std::ostream &    out )  const

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The documentation for this class was generated from the following file:

• more/phys/bcs.h

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