37 citations · 168 across the 17 of their papers we have counts for
17 papers · 1 filter
Authentication in Quantum Networks
Christopher Battarbee, Suchetana Goswami, Elham Kashefi +1
In this review, we survey the cryptographic task of authentication from the perspective of quantum communication. We review three main flavours of authentication that are often con…
Entanglement of minimal dimension and a class of local state discrimination problems
Saronath Halder, Suchetana Goswami
In this work, we construct small sets of bipartite orthogonal pure states that cannot be perfectly distinguished by local operations and classical communication (LOCC). We mention…
Hybrid Authentication Protocols for Advanced Quantum Networks
Suchetana Goswami, Mina Doosti, Elham Kashefi
Authentication is a fundamental building block of secure quantum networks, essential for quantum cryptographic protocols and often debated as a key limitation of quantum key distri…
Non-Markovian noise limits for sustaining entanglement in multiparty quantum states
Suchetana Goswami, Ujjwal Sen
The principal resource in several quantum information processing tasks is entanglement. Building practically useful versions of such tasks, one often needs to consider multipartite…
Breaking absolute separability with quantum switch
Sravani Yanamandra, P V Srinidhi, Samyadeb Bhattacharya +2
Absolute separable (AS) quantum states are those states from which it is impossible to create entanglement, even under global unitary operations. It is known from the resource theo…
Information locking and its resource efficient extraction
Suchetana Goswami, Saronath Halder
Locally indistinguishable states are useful to distribute information among spatially separated parties such that the information is locked. This implies that the parties are not a…
Detecting entanglement harnessing Lindblad structure
Vaibhav Chimalgi, Bihalan Bhattacharya, Suchetana Goswami +1
The problem of entanglement detection is a long standing problem in quantum information theory. One of the primary procedures of detecting entanglement is to find the suitable posi…
Entanglement and coherence in Bernstein-Vazirani algorithm
Moein Naseri, Tulja Varun Kondra, Suchetana Goswami +2
Quantum algorithms allow to outperform their classical counterparts in various tasks, most prominent example being Shor's algorithm for efficient prime factorization on a quantum c…
Generating and detecting bound entanglement in two-qutrits using a family of indecomposable positive maps
Bihalan Bhattacharya, Suchetana Goswami, Rounak Mundra +4
The problem of bound entanglement detection is a challenging aspect of quantum information theory for higher dimensional systems. Here, we propose an indecomposable positive map fo…
Experimental demonstration of one-sided device-independent self-testing of any pure two-qubit entangled state
Zhihao Bian, A. S. Majumdar, C. Jebaratnam +5
We demonstrate one-sided device-independent self-testing of any pure entangled two-qubit state based on a fine-grained steering inequality. The maximum violation of a fine-grained…
Protecting quantum correlations in presence of generalised amplitude damping channel: the two-qubit case
Suchetana Goswami, Sibasish Ghosh, A. S. Majumdar
Any kind of quantum resource useful in different information processing tasks is vulnerable to several types of environmental noise. Here we study the behaviour of quantum correlat…
Universal detection of entanglement in two-qubit states using only two copies
Suchetana Goswami, Sagnik Chakraborty, Sibasish Ghosh +1
We revisit the problem of detection of entanglement of an unknown two-qubit state using minimal resources. Using weak values and just two copies of an arbitrary two-qubit state, we…
One-sided Device-independent Self-testing of any Pure Two-qubit Entangled State
Suchetana Goswami, Bihalan Bhattacharya, Debarshi Das +3
We consider the problem of -sided device-independent self-testing of any pure entangled two-qubit state based on steering inequalities which certify the presence of quantum stee…
Coherence and entanglement under three qubit cloning operations
Suchetana Goswami, Satyabrata Adhikari, A. S. Majumdar
Coherence and entanglement are the two most crucial resources for various quantum information processing tasks. Here, we study the interplay of coherence and entanglement under the…
Operational nonclassicality of local multipartite correlations in the limited-dimensional simulation scenario
C. Jebaratnam, Debarshi Das, Suchetana Goswami +2
For a bipartite local quantum correlation, superlocality refers to the requirement for a larger dimension of the random variable in the classical simulation protocol than that of t…
Bipartite qutrit local realist inequalities and the robustness of their quantum mechanical violation
Debarshi Das, Shounak Datta, Suchetana Goswami +2
Distinct from the type of local realist inequality (known as the Collins-Gisin-Linden-Massar-Popescu or CGLMP inequality) usually used for bipartite qutrit systems, we formulate a…
Preservation of quantum key rate in the presence of decoherence
Shounak Datta, Suchetana Goswami, Tanumoy Pramanik +1
It is well known that the interaction of quantum systems with the environment reduces the inherent quantum correlations. Under special circumstances the effect of decoherence can b…