248 citations · 446 across the 8 of their papers we have counts for
8 papers
Randomness-free Test of Non-classicality: a Proof of Concept
Zhonghua Ma, Markus Rambach, Kaumudibikash Goswami +3
Quantum correlations and non-projective measurements underlie a plethora of information-theoretic tasks, otherwise impossible in the classical world. Existing schemes to certify su…
Approximate reconstructability of quantum states and noisy quantum secret sharing schemes
Yingkai Ouyang, Kaumudibikash Goswami, Jacquiline Romero +3
We introduce and analyse approximate quantum secret sharing in a formal cryptographic setting, wherein a dealer encodes and distributes a quantum secret to players such that author…
Polarization correction towards satellite-based QKD without an active feedback
Sourav Chatterjee, Kaumudibikash Goswami, Rishab Chatterjee +1
Quantum key distribution (QKD) is a cryptographic protocol to enable two parties to share a secure key string, which can be used in one-time pad cryptosystem. There has been an ong…
Experimental characterisation of a non-Markovian quantum process
K. Goswami, C. Giarmatzi, C. Monterola +3
Every quantum system is coupled to an environment. Such system-environment interaction leads to temporal correlation between quantum operations at different times, resulting in non…
Experiments on quantum causality
K. Goswami, J. Romero
Quantum causality extends the conventional notion of fixed causal structure by allowing channels and operations to act in an indefinite causal order. The importance of such an inde…
Classical communication through quantum causal structures
Kaumudibikash Goswami, Fabio Costa
Quantum mechanics allows operations to be in indefinite causal order. Recently there have been active discussions on enhanced communication strategies through exotic causal structu…
Communicating via ignorance: Increasing communication capacity via superposition of order
K. Goswami, Y. Cao, G. A. Paz-Silva +2
Classically, no information can be transmitted through a depolarising, that is a completely noisy, channel. We show that by combining a depolarising channel with another channel in…
Indefinite Causal Order in a Quantum Switch
K. Goswami, C. Giarmatzi, M. Kewming +4
In quantum mechanics events can happen in no definite causal order: in practice this can be verified by measuring a causal witness, in the same way that an entanglement witness ver…