Double-scaled SYK, chords and de Sitter gravity
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2025)076
Abstract: We study the partition function of 3D de Sitter gravity defined as the trace over the Hilbert space obtained by quantizing the phase space of non-rotating Schwarzschild-de Sitter spacetime. Motivated by the correspondence with double… read more here.
Keywords: double scaled; sitter gravity; scaled syk; syk chords ... See more keywords
Finite N bulk Hilbert space in ETH matrix model for double-scaled SYK. Null states, state-dependence and Krylov state complexity
Sign Up to like & getrecommendations! Published in 2025 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2025)084
Abstract: Abstract We extend the notion of chord number in the strict large N double-scaled Sachdev-Ye-Kitaev (DSSYK) model to the corresponding finite N ETH matrix model. The chord number in the strict large N DSSYK model… read more here.
Keywords: double scaled; state; model; chord number ... See more keywords
Double-scaled SYK, QCD, and the flat space limit of de Sitter space
Sign Up to like & getrecommendations! Published in 2025 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2025)137
Abstract: A surprising connection exists between double-scaled SYK at infinite temperature, and large N QCD. The large N expansions of the two theories have the same form; the ’t Hooft limit of QCD parallels the fixed… read more here.
Keywords: limit; space; double scaled; scaled syk ... See more keywords
Pole-skipping in two-dimensional de Sitter spacetime and double-scaled SYK model
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/f3cb-kmnc
Abstract: We develop the pole-skipping structure in de Sitter (dS) spacetime and find that their leading frequencies satisfy the relation $\omega_{dS}=i2\pi T_{dS}(1-s)$, where $T_{dS}=1/2\pi L$ and $s$ denotes spin. In the two-dimensional dS spacetime, the pole-skipping… read more here.
Keywords: spacetime; double scaled; two dimensional; pole skipping ... See more keywords