13 citations · 21 across the 8 of their papers we have counts for
10 papers
Quantum hypothesis testing of non-mixed-unitarity: A multifaceted hierarchy of quantum channel discrimination
Pratik Ghosal, Pritam Halder, Ayan Patra +2
Given multiple uses of an unknown quantum channel, we determine whether it is a specified non-mixed-unitary channel or belongs to the set of mixed-unitary channels. Formulating thi…
Noise adaptive two-way secure deterministic quantum key distribution
Abinash Kar, Ayan Patra, Aditi Sen De +1
We introduce noise-adaptive quantum key distribution (QKD) protocols, in which the honest parties optimize the encoding (state preparation) and decoding (measurement basis) operati…
Beating noise in frequency estimation with squeezing and memory in continuous-variable systems
Ayan Patra, Manju, Aditi Sen De +1
Quantum metrology promises precision beyond classical limits, yet environmental noise typically degrades the quantum resources required for such enhancement. In this work, we inves…
Imaginarity-generating power of unitaries: A resource-theoretic approach
Akhil Kumar Awasthi, Mrinmoy Samanta, Sudipta Mondal +2
Imaginarity, stemming from the complex structure of quantum mechanics, has recently emerged as a fundamental resource, yet its dynamical generation remains largely unexplored. In t…
Higher-dimensional BKL dynamics in AdS black holes
Elena Cáceres, Ángel J. Murcia, Ayan K. Patra +1
Chaotic BKL dynamics provides a canonical description of the approach to spacelike singularities as a sequence of Kasner epochs grouped into eras. While this paradigm is well estab…
Hierarchies of Gaussian multimode entanglement from thermodynamic quantifiers
Mrinmoy Samanta, Sudipta Mondal, Ayan Patra +2
We develop a thermodynamic characterization of multimode entanglement in pure continuous-variable systems by quantifying the gap between globally and locally extractable work (ergo…
Cosmology inside a black hole: adding matter on the brane
José L. F. Barbón, Ayan K. Patra, Juan F. Pedraza +1
Braneworlds inside an AdS black hole provide simple models where a closed cosmology can be encoded in a dual field theory. Previous studies have focused on pure-tension branes, whe…
Kasner eons with matter: holographic excursions to the black hole singularity
Elena Cáceres, Ángel J. Murcia, Ayan K. Patra +1
Recent work has shown that introducing higher-curvature terms to the Einstein-Hilbert action causes the approach to a space-like singularity to unfold as a sequence of Kasner eons.…
Diving inside holographic metals
Javier Carballo, Ayan K. Patra, Juan F. Pedraza
We investigate the gravitational dual of a fermionic field theory at finite temperature and charge density in two spatial dimensions, subject to a deformation by a relevant scalar…
Shock waves, black hole interiors and holographic RG flows
Elena Cáceres, Ayan K. Patra, Juan F. Pedraza
We study holographic renormalization group (RG) flows perturbed by a shock wave in dimensions . The flows are obtained by deforming a holographic conformal field theory wi…