77 citations · 311 across the 12 of their papers we have counts for
12 papers
Parisi's hypercube, Fock-space frustration and near-AdS/near-CFT holography
Micha Berkooz, Yiyang Jia, Navot Silberstein
We consider a model of Parisi where a single particle hops on an infinite-dimensional hypercube, under the influence of a uniform but disordered magnetic flux. We reinterpret the h…
Replica Symmetry Breaking in Random Non-Hermitian Systems
Antonio M. García-García, Yiyang Jia, Dario Rosa +1
Recent studies have revealed intriguing similarities between the contribution of wormholes to the gravitational path integral and the phenomenon of replica symmetry breaking observ…
Replica Symmetry Breaking for the Integrable Two-Site Sachdev-Ye-Kitaev Model
Yiyang Jia, Dario Rosa, Jacobus J. M. Verbaarschot
We analyze a two-body nonhermitian two-site Sachdev-Ye-Kitaev model with the couplings of one site complex conjugated to the other site. This model, with no explicit coupling betwe…
Replica Symmetry Breaking and Phase Transitions in a PT Symmetric Sachdev-Ye-Kitaev Model
Antonio M. García-García, Yiyang Jia, Dario Rosa +1
We show that the low temperature phase of a conjugate pair of uncoupled, quantum chaotic, nonhermitian systems such as the Sachdev-Ye-Kitaev (SYK) model or the Ginibre ensemble of…
Sparse Sachdev-Ye-Kitaev model, quantum chaos and gravity duals
Antonio M. García-García, Yiyang Jia, Dario Rosa +1
We study a sparse Sachdev-Ye-Kitaev (SYK) model with Majoranas where only independent matrix elements are non-zero. We identify a minimum for quantum c…
Universal Thermodynamics in the Kitaev Fractional Liquid
Han Li, Dai-Wei Qu, Hao-Kai Zhang +4
In the Kitaev honeycomb model, the quantum spin fractionalizes into itinerant Majorana and gauge flux spontaneously upon cooling, leading to rich experimental ramifications at fini…
Chaos on the hypercube
Yiyang Jia, Jacobus J. M. Verbaarschot
We analyze the spectral properties of a -dimensional HyperCubic (HC) lattice model originally introduced by Parisi. The U(1) gauge links of this model give rise to a magnetic fl…
Spectral Fluctuations in the Sachdev-Ye-Kitaev Model
Yiyang Jia, Jacobus J. M. Verbaarschot
We present a detailed quantitative analysis of spectral correlations in the Sachdev-Ye-Kitaev (SYK) model. We find that the deviations from universal Random Matrix Theory (RMT) beh…
Large expansion of the moments and free energy of Sachdev-Ye-Kitaev model, and the enumeration of intersection graphs
Yiyang Jia, Jacobus J. M. Verbaarschot
In this paper we explain the relation between the free energy of the SYK model for Majorana fermions with a random -body interaction and the moments of its spectral density.…
Universality and Thouless energy in the supersymmetric Sachdev-Ye-Kitaev Model
Antonio M. García-García, Yiyang Jia, Jacobus J. M. Verbaarschot
We investigate the supersymmetric Sachdev-Ye-Kitaev (SYK) model, Majorana fermions with infinite range interactions in dimensions. We have found that, close to the ground…
Exact moments of the Sachdev-Ye-Kitaev model up to order
Antonio M. García-García, Yiyang Jia, Jacobus J. M. Verbaarschot
We analytically evaluate the moments of the spectral density of the -body Sachdev-Ye-Kitaev (SYK) model, and obtain order corrections for all moments, where is the t…
Continuum limit of the axial anomaly and index for the staggered overlap Dirac operator: An overview
David H. Adams, Reetabrata Har, Yiyang Jia +1
Evaluation of the continuum limit of the axial anomaly and index is sketched for the staggered overlap Dirac operator. There are new complications compared to the usual overlap cas…