2.2k citations · 4.7k across the 12 of their papers we have counts for
12 papers
Dynamical actions and q-representation theory for double-scaled SYK
Andreas Blommaert, Thomas G. Mertens, Shunyu Yao
We show that DSSYK amplitudes are reproduced by considering the quantum mechanics of a constrained particle on the quantum group SU. We construct its left-and right-regula…
The power of Lorentzian wormholes
Andreas Blommaert, Jorrit Kruthoff, Shunyu Yao
As shown by Louko and Sorkin in 1995, topology change in Lorentzian signature involves spacetimes with singular points, which they called crotches. We modify their construction to…
A convergent genus expansion for the plateau
Phil Saad, Douglas Stanford, Zhenbin Yang +1
We conjecture a formula for the spectral form factor of a double-scaled matrix integral in the limit of large time, large density of states, and fixed temperature. The formula has…
An integrable road to a perturbative plateau
Andreas Blommaert, Jorrit Kruthoff, Shunyu Yao
As has been known since the 90s, there is an integrable structure underlying two-dimensional gravity theories. Recently, two-dimensional gravity theories have regained an enormous…
Comments on wormholes and factorization
Phil Saad, Stephen Shenker, Shunyu Yao
In AdS/CFT partition functions of decoupled copies of the CFT factorize. In bulk computations of such quantities contributions from spacetime wormholes which link separate asymptot…
Subleading Weingartens
Douglas Stanford, Zhenbin Yang, Shunyu Yao
Haar integrals over the unitary group contain subleading terms that are needed for unitarity. We study analogous effects in the time evolution operators of JT gravity and Brownian…
Wormholes without averaging
Phil Saad, Stephen H. Shenker, Douglas Stanford +1
After averaging over fermion couplings, SYK has a collective field description that sometimes has "wormhole" solutions. We study the fate of these wormholes when the couplings are…
Non-Hermitian Topological Invariants in Real Space
Fei Song, Shunyu Yao, Zhong Wang
The topology of non-Hermitian systems is drastically shaped by the non-Hermitian skin effect, which leads to the generalized bulk-boundary correspondence and non-Bloch band theory.…
Non-Hermitian skin effect and chiral damping in open quantum systems
Fei Song, Shunyu Yao, Zhong Wang
One of the unique features of non-Hermitian Hamiltonians is the non-Hermitian skin effect, namely that the eigenstates are exponentially localized at the boundary of the system. Fo…
Non-Hermitian Chern bands
Shunyu Yao, Fei Song, Zhong Wang
The relation between chiral edge modes and bulk Chern numbers of quantum Hall insulators is a paradigmatic example of bulk-boundary correspondence. We show that the chiral edge mod…
Edge states and topological invariants of non-Hermitian systems
Shunyu Yao, Zhong Wang
The bulk-boundary correspondence is among the central issues of non-Hermitian topological states. We show that a previously overlooked `non-Hermitian skin effect' necessitates rede…
Topological invariants of Floquet systems: General formulation, special properties, and Floquet topological defects
Shunyu Yao, Zhongbo Yan, Zhong Wang
Periodically driven (Floquet) systems have been under active theoretical and experimental investigations. This paper aims at a systematic study in the following aspects of Floquet…