Momentum-resolved and correlation spectroscopy using quantum probes

Francesco Cosco*, Massimo Borrelli, Francesco Plastina, Sabrina Maniscalco

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)
102 Downloads (Pure)

Abstract

We address some key conditions under which many-body lattice models, intended mainly as simulated condensed-matter systems, can be investigated via immersed, fully controllable quantum objects, namely quantum probes. First, we present a protocol that, for a certain class of many-body systems, allows for full momentum-resolved spectroscopy using one single probe. Furthermore, we demonstrate how one can extract the two-point correlations using two entangled probes. We apply our theoretical proposal to two well-known exactly solvable lattice models, a one-dimensional (1D) Kitaev chain and 2D superfluid Bose-Hubbard model, and show its accuracy as well as its robustness against external noise.

Original languageEnglish
Article number053620
Pages (from-to)1-10
Number of pages10
JournalPhysical Review A
Volume95
Issue number5
DOIs
Publication statusPublished - 19 May 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • ATOMIC MOTT INSULATOR
  • NARROW ENERGY-BANDS
  • ELECTRON CORRELATIONS
  • ULTRACOLD GASES
  • OPTICAL LATTICE
  • TRANSITION
  • SYSTEMS

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