115 citations · 522 across the 35 of their papers we have counts for
35 papers
Polytopic Quantum Resource Theories: Geometry and Structures
Moein Naseri, Chirag Srivastava, Chandan Datta +2
Quantum resource theories provide a unifying framework to quantify, compare, and manipulate quantum resources under well-defined operational constraints. Here, we consider any reso…
Robustness as a thermodynamic currency: work advantages and preparation costs of nonclassical states
Luis Pedro Garcıa-Pintos, Tanmoy Biswas, Chandan Datta
Understanding whether uniquely quantum features can provide concrete advantages in thermodynamic processes is a central objective of quantum thermodynamics. A key challenge is quan…
Violation of Bell Monogamy Relations
Abhisek Panda, Chandan Datta, Pankaj Agrawal
The entangled multipartite systems, specially in pure states, exhibit the phenomenon of entanglement monogamy. Such systems also display the phenomenon of Bell nonlocality. Like en…
Deterministic distribution of W-class states in quantum networks
Souvik Chatterjee, Prasenjit Deb, Chandan Datta +1
Multipartite entangled states possess a number of non-intuitive properties, making them a useful resource for various quantum information-processing tasks. The three-qubit W-state…
All steerable quantum correlations can provide thermodynamic advantages in cooling
Tanmoy Biswas, Chandan Datta, Luis Pedro Garcia-Pintos
The removal of heat generated during computation poses a major challenge for both classical and quantum computation and information processing. In particular, removal of this heat…
Quantum thermodynamic advantage in work extraction from steerable quantum correlations
Tanmoy Biswas, Chandan Datta, Luis Pedro García-Pintos
Inspired by the primary goal of quantum thermodynamics -- to characterize quantum signatures and leverage their benefits in thermodynamic scenarios -- , we design a work extraction…
Detecting quantum resources in a semi-device independent framework
Shubhayan Sarkar, Chandan Datta
We investigate whether one can detect the presence of a quantum resource in some operational task or equivalently whether every quantum resource provides an advantage over its free…
Optimal performance of a three stroke heat engine in the microscopic regime
Tanmoy Biswas, Chandan Datta
We consider a three-stroke engine in the microscopic regime, where the working body of the engine is composed of a two-level system. The working body of the engine aims to withdraw…
Scalable noisy quantum circuits for biased-noise qubits
Marco Fellous-Asiani, Moein Naseri, Chandan Datta +2
In this work, we consider biased-noise qubits affected only by bit-flip errors, which is motivated by existing systems of stabilized cat qubits. This property allows us to design a…
Self-testing composite measurements and bound entangled state in a single quantum network
Shubhayan Sarkar, Chandan Datta, Saronath Halder +1
Within the quantum networks scenario we introduce a single scheme allowing to certify three different types of composite projective measurements acting on a three-qubit Hilbert spa…
Is there a finite complete set of monotones in any quantum resource theory?
Chandan Datta, Ray Ganardi, Tulja Varun Kondra +1
Entanglement quantification aims to assess the value of quantum states for quantum information processing tasks. A closely related problem is state convertibility, asking whether t…
Real quantum operations and state transformations
Tulja Varun Kondra, Chandan Datta, Alexander Streltsov
Resource theory of imaginarity provides a useful framework to understand the role of complex numbers, which are essential in the formulation of quantum mechanics, in a mathematical…
Catalysis of entanglement and other quantum resources
Chandan Datta, Tulja Varun Kondra, Marek Miller +1
In chemistry, a catalyst is a substance which enables a chemical reaction or increases its rate, while remaining unchanged in the process. Instead of chemical reactions, quantum ca…
Entanglement catalysis for quantum states and noisy channels
Chandan Datta, Tulja Varun Kondra, Marek Miller +1
Many applications of the emerging quantum technologies, such as quantum teleportation and quantum key distribution, require singlets, maximally entangled states of two quantum bits…
Stochastic approximate state conversion for entanglement and general quantum resource theories
Tulja Varun Kondra, Chandan Datta, Alexander Streltsov
Quantum resource theories provide a mathematically rigorous way of understanding the nature of various quantum resources. An important problem in any quantum resource theory is to…
Sub-Rayleigh characterization of a binary source by spatially demultiplexed coherent detection
Chandan Datta, Yink Loong Len, Karol Łukanowski +2
We investigate theoretically coherent detection implemented simultaneously on a set of mutually orthogonal spatial modes in the image plane as a method to characterize properties o…
Catalytic Transformations of Pure Entangled States
Tulja Varun Kondra, Chandan Datta, Alexander Streltsov
Quantum entanglement of pure states is usually quantified via the entanglement entropy, the von Neumann entropy of the reduced state. Entanglement entropy is closely related to ent…
Perfect discrimination of quantum measurements using entangled systems
Chandan Datta, Tanmoy Biswas, Debashis Saha +1
Distinguishing physical processes is one of the fundamental problems in quantum physics. Although distinguishability of quantum preparations and quantum channels have been studied…
Sub-Rayleigh resolution of two incoherent sources by array homodyning
Chandan Datta, Marcin Jarzyna, Yink Loong Len +3
Conventional incoherent imaging based on measuring the spatial intensity distribution in the image plane faces the resolution hurdle described by the Rayleigh diffraction criterion…
Resolution limits of spatial mode demultiplexing with noisy detection
Yink Loong Len, Chandan Datta, Michał Parniak +1
We consider the problem of estimating the spatial separation between two mutually incoherent point light sources using the super-resolution imaging technique based on spatial mode…
Inferred-variance uncertainty relations in the presence of quantum entanglement
Shrobona Bagchi, Chandan Datta, Pankaj Agrawal
Uncertainty relations play a significant role in drawing a line between classical physics and quantum physics. Since the introduction by Heisenberg, these relations have been consi…
Two-qubit mixed states and teleportation fidelity: Purity, concurrence, and beyond
Sumit Nandi, Chandan Datta, Arpan Das +1
To explore the properties of a two-qubit mixed state, we consider quantum teleportation. The fidelity of a teleported state depends on the resource state purity and entanglement, a…
Minimal scenario facet Bell inequalities for multi-qubit states
Arpan Das, Chandan Datta, Pankaj Agrawal
Facet inequalities play an important role in detecting the nonlocality of a quantum state. The number of such inequalities depends on the Bell test scenario. With the increase in t…
Can Quantum discord increase in a quantum communication task?
Shubhayan Sarkar, Chandan Datta
Quantum teleportation of an unknown quantum state is one of the few communication tasks which has no classical counterpart. Usually the aim of teleportation is to send an unknown q…