activity
20172022
most citedSmooth Connes--Thom isomorphism, cyclic homology, and equivariant quantisation

1 citations · 2 across the 7 of their papers we have counts for

collaborators

10 papers

math.OA2022

-theory of non-commutative Bernoulli Shifts

Sayan Chakraborty, Siegfried Echterhoff, Julian Kranz +1

For a large class of C*-algebras , we calculate the -theory of reduced crossed products of Bernoulli shifts by groups satisfying the Baum--Connes co…

quant-ph2022

Centralised multi link measurement compression with side information

Sayantan Chakraborty, Arun Padakandla, Pranab Sen

We prove new one shot achievability results for measurement compression of quantum instruments with side information at the receiver. Unlike previous one shot results for this prob…

quant-ph2021

One-shot inner bounds for sending private classical information over a quantum MAC

Sayantan Chakraborty, Aditya Nema, Pranab Sen

We provide the first inner bounds for sending private classical information over a quantum multiple access channel. We do so by using three powerful information theoretic technique…

quant-ph20211 cited

One-shot multi-sender decoupling and simultaneous decoding for the quantum MAC

Sayantan Chakraborty, Aditya Nema, Pranab Sen

In this work, we prove a novel one-shot multi-sender decoupling theorem generalising Dupuis result. We start off with a multipartite quantum state, say on A1 A2 R, where A1, A2 are…

math.OA2021

Tracing projective modules over noncommutative orbifolds

Sayan Chakraborty

For an action of a finite cyclic group on an -dimensional noncommutative torus we give sufficient conditions when the fundamental projective modules over , which…

cs.DS2019

Improved Bounds for Perfect Sampling of -Colorings in Graphs

Siddharth Bhandari, Sayantan Chakraborty

We present a randomized algorithm that takes as input an undirected -vertex graph with maximum degree and an integer , and returns a random proper -coloring o…