6 papers · 1 filter
Detecting Entanglement by State Preparation and Local Measurements
Jaemin Kim, Anindita Bera, Dariusz ChruÅciÅski +1
Entanglement witnesses (EWs) are a collection of observables that can characterize separable states and, experimentally, estimating EWs can verify entangled states. In this work, w…
Practical and Efficient Verification of Entanglement with Incomplete Measurement Settings
Jiheon Seong, Jin-Woo Kim, Seungchan Seo +6
In this work, we present a practical and efficient framework for verifying entangled states when only a tomographically incomplete measurement setting is available-specifically, wh…
Estimation of trace distance between two arbitrary quantum states
Sanchita Ghosh, Anumita Mukhopadhyay, Anindita Bera +2
When it comes to discriminating between two quantum states, trace distance is one of the well-known metrics used in quantum computation and quantum information theory. While there…
Mirrored Entanglement Witnesses for Multipartite and High-Dimensional Quantum Systems
Jiheon Seong, Anindita Bera, Beatrix C. Hiesmayr +2
Entanglement witnesses (EWs) are a versatile tool to detect entangled states and characterize related properties of entanglement in quantum information theory. A witness corres…
Entanglement detection via third-order local invariants from randomized measurements
Giovanni Scala, Anindita Bera, Gniewomir Sarbicki
We compute all third-order local invariants accessible via randomised measurements and employ them to derive separability criteria. The reconstruction of the invariants yields expe…
A mirrored pair of optimal non-decomposable entanglement witnesses for two qudits does exist
Dariusz ChruÅciÅski, Anindita Bera, Joonwoo Bae +1
Two approaches can be utilized to handle the separability problem, finding out whether a given bipartite qudit state is separable or not: a direct procedure on the state space or t…