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Excitation spectra of quantum matter without quasiparticles II: random - models
Maria Tikhanovskaya, Haoyu Guo, Subir Sachdev +1
We present numerical solutions of the spectral functions of - models with random and all-to-all exchange and global SU() spin rotation symmetry. The solutions are obtained…
Quantum Phases of Matter on a 256-Atom Programmable Quantum Simulator
Sepehr Ebadi, Tout T. Wang, Harry Levine +12
Motivated by far-reaching applications ranging from quantum simulations of complex processes in physics and chemistry to quantum information processing, a broad effort is currently…
Quantum phases of Rydberg atoms on a kagome lattice
Rhine Samajdar, Wen Wei Ho, Hannes Pichler +2
We analyze the zero-temperature phases of an array of neutral atoms on the kagome lattice, interacting via laser excitation to atomic Rydberg states. Density-matrix renormalization…
Excitation spectra of quantum matter without quasiparticles I: Sachdev-Ye-Kitaev models
Maria Tikhanovskaya, Haoyu Guo, Subir Sachdev +1
We study the low frequency spectra of complex Sachdev-Ye-Kitaev (SYK) models at general densities. The analysis applies also to SU() magnets with random exchange at large . T…
Superconductivity, correlated insulators, and Wess-Zumino-Witten terms in twisted bilayer graphene
Maine Christos, Subir Sachdev, Mathias S. Scheurer
Recent experiments on twisted bilayer graphene have shown a high-temperature parent state with massless Dirac fermions and broken electronic flavor symmetry; superconductivity and…
Bilocal quantum criticality
Harley D. Scammell, Mathias S. Scheurer, Subir Sachdev
We consider 2+1 dimensional conformal gauge theories coupled to additional degrees of freedom which induce a spatially local but long-range in time interaction between…