7 citations · 14 across the 6 of their papers we have counts for
7 papers
Trend formation with sparse global sampling
Sarath Sankar, Abhijit Sinha, Shankar Ghosh +2
Achieving global coordination without a central controller or dense global communication is a defining challenge for both biological collectives and engineered swarms. We introduce…
Anderson Orthogonality as Measurement Backaction in Coupled Quantum Dots
Will Grant, Sarath Sankar, Elena Cornick +9
Measurement perturbs a quantum system by coupling it to external degrees of freedom, but detector backaction depends on the physical mechanism of measurement itself. In solid-state…
Direct signatures of Anderson orthogonality catastrophe in nonequilibrium quantum dots
Sarath Sankar, Joshua Folk, Yigal Meir +1
We propose schemes for unambiguous direct observation of Anderson orthogonality catastrophe (AOC) effects in a quantum dot coupled to a charge detector, allowing to estimate the AO…
Back-action effects in charge detection
Sarath Sankar, Matan Lotem, Joshua Folk +2
Charge detection offers a powerful probe of mesoscopic structures based on quantum dots, but it also invariably results in measurement back-action (MBA). If strong, MBA can be detr…
Relevance of Anisotropy in the Kondo Effect: Lessons From the Symplectic Case
Matan Lotem, Sarath Sankar, Tianhao Ren +5
A Kondo model with symplectic symmetry was recently put forward as the effective low-energy theory of a superconducting-island device coupled to multiple leads. This model, which p…
Detector-tuned overlap catastrophe in quantum dots
Sarath Sankar, Corentin Bertrand, Antoine Georges +2
The Anderson overlap catastrophe (AOC) is a many-body effect arising as a result of a shakeup of a Fermi sea due to an abrupt change of a local potential, leading to a power-law de…
Measuring topological entanglement entropy using Maxwell relations
Sarath Sankar, Eran Sela, Cheolhee Han
Topological entanglement entropy (TEE) is a key diagnostic of topological order, allowing to detect the presence of Abelian or non-Abelian anyons. However, there are currently no p…