71 citations · 508 across the 26 of their papers we have counts for
26 papers
Dipole superfluid hydrodynamics
Akash Jain, Kristan Jensen, Ruochuan Liu +1
We construct a theory of hydrodynamic transport for systems with conserved dipole moment, U(1) charge, energy, and momentum. These models have been considered in the context of fra…
Approximate higher-form symmetries, topological defects, and dynamical phase transitions
Jay Armas, Akash Jain
Higher-form symmetries are a valuable tool for classifying topological phases of matter. However, emergent higher-form symmetries in interacting many-body quantum systems are not t…
Hydrodynamics of plastic deformations in electronic crystals
Jay Armas, Erik van Heumen, Akash Jain +1
We construct a new hydrodynamic framework describing plastic deformations in electronic crystals. The framework accounts for pinning, phase, and momentum relaxation effects due to…
Approximate symmetries, pseudo-Goldstones, and the second law of thermodynamics
Jay Armas, Akash Jain, Ruben Lier
We propose a general hydrodynamic framework for systems with spontaneously broken approximate symmetries. The second law of thermodynamics naturally results in relaxation in the hy…
Fractons in curved space
Akash Jain, Kristan Jensen
We consistently couple simple continuum field theories with fracton excitations to curved spacetime backgrounds. We consider homogeneous and isotropic fracton field theories, with…
Notes on symmetries in particle physics
Akash Jain
These are introductory notes on symmetries in quantum field theory and how they apply to particle physics. The notes cover the fundamentals of group theory, their representations,…
Hydrodynamic effective field theory and the analyticity of hydrostatic correlators
Akash Jain, Pavel Kovtun, Adam Ritz +1
We study one-loop corrections to retarded and symmetric hydrostatic correlation functions within the Schwinger-Keldysh effective field theory framework for relativistic hydrodynami…
Effective field theory for hydrodynamics without boosts
Jay Armas, Akash Jain
We formulate the Schwinger-Keldysh effective field theory of hydrodynamics without boost symmetry. This includes a spacetime covariant formulation of classical hydrodynamics withou…
Effective field theory for non-relativistic hydrodynamics
Akash Jain
We write down a Schwinger-Keldysh effective field theory for non-relativistic (Galilean) hydrodynamics. We use the null background construction to covariantly couple Galilean field…
Non-universality of hydrodynamics
Akash Jain, Pavel Kovtun
We investigate the effects of stochastic interactions on hydrodynamic correlation functions using the Schwinger-Keldysh effective field theory. We identify new "stochastic transpor…
On the Hydrodynamic Description of Holographic Viscoelastic Models
Martin Ammon, Matteo Baggioli, Seán Gray +2
We show that the correct dual hydrodynamic description of homogeneous holographic models with spontaneously broken translations must include the so-called "strain pressure" -- a no…
Design and Development of Underwater Vehicle: ANAHITA
Akash Jain, Manish Kumar, Rithvik Patibandla +16
Anahita is an autonomous underwater vehicle which is currently being developed by interdisciplinary team of students at Indian Institute of Technology(IIT) Kanpur with aim to provi…
One-form superfluids and magnetohydrodynamics
Jay Armas, Akash Jain
We use the framework of generalised global symmetries to study various hydrodynamic regimes of hot electromagnetism. We formulate the hydrodynamic theories with an unbroken or a sp…
Magnetohydrodynamics as superfluidity
Jay Armas, Akash Jain
We show that relativistic magnetohydrodynamics (MHD) can be recast as a novel theory of superfluidity. This new theory formulates MHD just in terms of conservation equations, inclu…
Holographic Reconstruction of Bubbles
Philipp Burda, Ruth Gregory, Akash Jain
We discuss the holographic reconstruction of static thin bubble walls in BTZ black hole geometries. We consider two reconstruction prescriptions suggested in recent years: hole-ogr…
Dissipative hydrodynamics with higher-form symmetry
Jay Armas, Jakob Gath, Akash Jain +1
A theory of parity-invariant dissipative fluids with -form symmetry is formulated to first order in a derivative expansion. The fluid is anisotropic with symmetry $\text{SO}(D-1…
Second order Galilean fluids & Stokes' law
Nabamita Banerjee, Sayali Atul Bhatkar, Akash Jain
We study the second derivative effects on the constitutive relations of an uncharged parity-even Galilean fluid using the null fluid framework. Null fluids are an equivalent repres…
First Order Galilean Superfluid Dynamics
Nabamita Banerjee, Suvankar Dutta, Akash Jain
We study dynamics of (anomalous) Galilean superfluid up to first order in derivative expansion, both in parity-even and parity-odd sectors. We construct a relativistic system -- nu…
On the surface of superfluids
Jay Armas, Jyotirmoy Bhattacharya, Akash Jain +1
Developing on a recent work on localized bubbles of ordinary relativistic fluids, we study the comparatively richer leading order surface physics of relativistic superfluids, coupl…
A theory for non-Abelian superfluid dynamics
Akash Jain
We write down a theory for non-Abelian superfluids with a partially broken (semisimple) Lie group. We adapt the offshell formalism of hydrodynamics to superfluids and use it to com…
Galilean Anomalies and Their Effect on Hydrodynamics
Akash Jain
We extend the null background construction of [arXiv:1505.05677,arXiv:1509.04718] to include torsion and a conserved spin current, and use it to study gauge and gravitational anoma…
Null Fluids - A New Viewpoint of Galilean Fluids
Nabamita Banerjee, Suvankar Dutta, Akash Jain
This article is a detailed version of our short letter `On equilibrium partition function for non-relativistic fluid' [arXiv:1505.05677] extended to include an anomalous sym…
Equilibrium partition function for nonrelativistic fluids
Nabamita Banerjee, Suvankar Dutta, Akash Jain
We construct an equilibrium partition function for a non-relativistic fluid and use it to constrain the dynamics of the system. The construction is based on light cone reduction, w…
Higher Derivative Corrections to Charged Fluids in 2n Dimensions
Nabamita Banerjee, Suvankar Dutta, Akash Jain
We study anomalous charged fluid in -dimensions () up to sub-leading derivative order. Only the effect of gauge anomaly is important at this order. Using the Euclidean…