Readout Functions

A single site can be access with the operator[]:

IntType local_state = state[100];

The code provides various functions with different containers, e.g., single primitive integer, std::vector, or State class, to access a specific range from start to end. A detailed documentation of these functions can be found in here.

const IntType danceq::internal::State::operator[](uint64_t site_index) const

Reads the local state at a given site.

Returns state at site site_index, \(\vert \sigma_{\textbf{site_index}} \rangle\).

IntType local_state = state[site_index];

Warning

Only the return option of the operator [] is defined. Use the function set_state(…) to modify a specific site.

Parameters:

site_index – Site to read

Returns:

Local site

State<MaxSites, Q, IntType, Nbits, NInt> danceq::internal::State::get_range(uint64_t start = 0, uint64_t end = MaxSites) const

Returns a truncated State within a range.

Returns an instance of State truncated to start to end-1.

Parameters:

• start – Start of range

• end – End of range

Returns:

Truncated state