781 citations · 2.3k across the 27 of their papers we have counts for
27 papers
Complex eigenvalue instantons and the Fredholm determinant expansion in the Gross-Witten-Wadia model
Dan Stefan Eniceicu, Raghu Mahajan, Chitraang Murdia
We study the leading nonperturbative corrections to the strong-coupling (ungapped) phase of the Gross-Witten-Wadia (GWW) integral over unitary matrices, to one-loop order. We compu…
The ZZ annulus one-point function in non-critical string theory: A string field theory analysis
Dan Stefan Eniceicu, Raghu Mahajan, Pronobesh Maity +2
We compute the ZZ annulus one-point function of the cosmological constant operator in non-critical string theory, regulating divergences from the boundaries of moduli space using s…
Multi-instantons in minimal string theory and in matrix integrals
Dan Stefan Eniceicu, Raghu Mahajan, Chitraang Murdia +1
We compute the normalization of the general multi-instanton contribution to the partition function of minimal string theory and also to the dual two-matrix integral. We fi…
Normalization of ZZ instanton amplitudes in minimal string theory
Dan Stefan Eniceicu, Raghu Mahajan, Chitraang Murdia +1
We use insights from string field theory to analyze and cure the divergences in the cylinder diagram in minimal string theory with both boundaries lying on a ZZ brane. We focus on…
Sphere and disk partition functions in Liouville and in matrix integrals
Raghu Mahajan, Douglas Stanford, Cynthia Yan
We compute the sphere and disk partition functions in semiclassical Liouville and analogous quantities in double-scaled matrix integrals. The quantity sphere/disk^2 is unambiguous…
Free fermion entanglement with a semitransparent interface: the effect of graybody factors on entanglement islands
Jorrit Kruthoff, Raghu Mahajan, Chitraang Murdia
We study the entanglement entropy of free fermions in 2d in the presence of a partially transmitting interface that splits Minkowski space into two half-spaces. We focus on the cas…
The double cone geometry is stable to brane nucleation
Raghu Mahajan, Donald Marolf, Jorge E. Santos
In gauge/gravity duality, the bulk double cone geometry has been argued to account for a key feature of the spectral form factor known as the ramp. This feature is deeply associate…
Comments on the Quantum Field Theory of the Coulomb Gas Formalism
Daniel Kapec, Raghu Mahajan
The holomorphic Coulomb gas formalism is a set of rules for computing minimal model observables using free field techniques. We attempt to derive and clarify these rules using stan…
Density matrices in quantum gravity
Tarek Anous, Jorrit Kruthoff, Raghu Mahajan
We study density matrices in quantum gravity, focusing on topology change. We argue that the inclusion of bra-ket wormholes in the gravity path integral is not a free choice, but i…
Matrix ensembles with global symmetries and 't Hooft anomalies from 2d gauge theory
Daniel Kapec, Raghu Mahajan, Douglas Stanford
The Hilbert space of a quantum system with internal global symmetry decomposes into sectors labelled by irreducible representations of . If the system is chaotic, the energi…
Entanglement islands in higher dimensions
Ahmed Almheiri, Raghu Mahajan, Jorge E. Santos
It has been suggested in recent work that the Page curve of Hawking radiation can be recovered using computations in semi-classical gravity provided one allows for "islands" in the…
Islands outside the horizon
Ahmed Almheiri, Raghu Mahajan, Juan Maldacena
We consider an AdS black hole in equilibrium with a bath, which we take to have a dual description as (0+1)-dimensional quantum mechanical system coupled to a (1+1)-dimensional…
The Page curve of Hawking radiation from semiclassical geometry
Ahmed Almheiri, Raghu Mahajan, Juan Maldacena +1
We consider a gravity theory coupled to matter, where the matter has a higher-dimensional holographic dual. In such a theory, finding quantum extremal surfaces becomes equivalent t…
An Index for Quantum Integrability
Shota Komatsu, Raghu Mahajan, Shu-Heng Shao
The existence of higher-spin quantum conserved currents in two dimensions guarantees quantum integrability. We revisit the question of whether classically-conserved local higher-sp…
Does the SYK model have a spin glass phase?
Guy Gur-Ari, Raghu Mahajan, Abolhassan Vaezi
We argue that the Sachdev-Ye-Kitaev model has no spin glass phase, based on calculations involving both the nearly-conformal limit and the strongly-coupled Schwarzian limit of the…
Parity and the modular bootstrap
Tarek Anous, Raghu Mahajan, Edgar Shaghoulian
We consider unitary, modular invariant, two-dimensional CFTs which are invariant under the parity transformation . Combining with modular inversion leads to a continuous…
The Conformal Bootstrap at Finite Temperature
Luca Iliesiu, Murat Koloğlu, Raghu Mahajan +2
We initiate an approach to constraining conformal field theory (CFT) data at finite temperature using methods inspired by the conformal bootstrap for vacuum correlation functions.…
An upper bound on transport
Thomas Hartman, Sean A. Hartnoll, Raghu Mahajan
The linear growth of operators in local quantum systems leads to an effective lightcone even if the system is non-relativistic. We show that consistency of diffusive transport with…
Late-time Structure of the Bunch-Davies FRW Wavefunction
George Konstantinidis, Raghu Mahajan, Edgar Shaghoulian
In this short note we organize a perturbation theory for the Bunch-Davies wavefunction in flat, accelerating cosmologies. The calculational technique avoids the in-in formalism and…
Entanglement structure of non-equilibrium steady states
Raghu Mahajan, C. Daniel Freeman, Sam Mumford +2
We study the problem of calculating transport properties of interacting quantum systems, specifically electrical and thermal conductivities, by computing the non-equilibrium steady…
Transport in Chern-Simons-Matter Theories
Guy Gur-Ari, Sean A. Hartnoll, Raghu Mahajan
The frequency-dependent longitudinal and Hall conductivities --- and --- are dimensionless functions of in 2+1 dimensional CFTs at nonzero temperature. Thes…
Connecting Entanglement in Time and Space: Improving the Folding Algorithm
M. B. Hastings, R. Mahajan
The "folding algorithm"\cite{fold1} is a matrix product state algorithm for simulating quantum systems that involves a spatial evolution of a matrix product state. Hence, the compu…
Holographic mutual information and distinguishability of Wilson loop and defect operators
Sean A. Hartnoll, Raghu Mahajan
The mutual information of disconnected regions in large gauge theories with holographic gravity duals can undergo phase transitions. These occur when connected and disconnected…
Chern-Simons-Ghost Theories and de Sitter Space
Dionysios Anninos, Raghu Mahajan, Djordje Radicevic +1
We explore Chern-Simons theories coupled to fundamental ghost-like matter in the large limit at 't Hooft coupling . These theories have been conjectured to be holographicall…