Real-space circuit complexity as a probe of phase diagrams

Nishan C. Jayarama, Viktor Svensson

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

Circuit complexity has been used as a tool to study various properties in condensed matter systems, in particular as a way to probe the phase diagram. However, compared with measures based on entanglement, complexity has been found lacking. We show that when imposing penalty factors punishing nonlocality, it becomes a much stronger probe of the phase diagram, able to probe more subtle features. We do this by deriving analytical solutions for the complexity in the XY chain with transverse field.

Originalspråkengelska
Artikelnummer075122
TidskriftPhysical Review B
Volym107
Nummer7
DOI
StatusPublished - 2023 feb.

Ämnesklassifikation (UKÄ)

  • Den kondenserade materiens fysik

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