Publications (35)
Exclusive Control of Quantum Memory Erasure
Mir Alimuddin, Nathan Shettell, Raja Yehia +2
Erasing memory is a fundamental operational task in quantum information processing, governed by Landauer's principle, which links information loss to thermodynamic work. We introdu…
Allowed and Forbidden Bipartite Correlations from Thermal States
Tamal Guha, Mir Alimuddin, Preeti Parashar
The strong connection between correlations and quantum thermodynamics raises a natural question about the preparation of correlated quantum states from two copies of a thermal qubi…
Multi-copy adaptive local discrimination: Strongest possible two-qubit nonlocal bases
Manik Banik, Tamal Guha, Mir Alimuddin +3
Ensembles of composite quantum states can exhibit nonlocal behaviour in the sense that their optimal discrimination may require global operations. Such an ensemble containing N pai…
Certifying ergotropy under partial information
Egle Pagliaro, Leonardo Zambrano, Mir Alimuddin +3
Ergotropy, the maximum work extractable from a quantum system, is a central resource in quantum physics. Computing ergotropy is well established when the system state is fully know…
Advantage of Hardy's Nonlocal Correlation in Reverse Zero-Error Channel Coding
Mir Alimuddin, Ananya Chakraborty, Govind Lal Sidhardh +5
Hardy's argument constitutes an elegant proof of quantum nonlocality. In this work, we report an exotic application of Hardy's nonlocal correlations in two-party communication setu…
Structure of passive states and its implication in charging quantum batteries
Mir Alimuddin, Tamal Guha, Preeti Parashar
In this article, in addition to the characterization of geometrical state spaces for the passive states, an operational approach has been introduced to distinguish them on their ch…
Thermodynamic advancement in the causally inseparable occurrence of thermal maps
Tamal Guha, Mir Alimuddin, Preeti Parashar
Quantum mechanics allows the occurrence of events without having any definite causal order. Here, it is shown that the application of two different thermal channels in the causally…
Classical analogue of quantum superdense coding and communication advantage of a single quantum system
Ram Krishna Patra, Sahil Gopalkrishna Naik, Edwin Peter Lobo +5
We analyze utility of communication channels in absence of any short of quantum or classical correlation shared between the sender and the receiver. To this aim, we propose a class…
Asymptotic Birkhoff-Violation in Operational Theories: Thermodynamic Implications and Information Processing
Ananya Chakraborty, Sahil Gopalkrishna Naik, Samrat Sen +4
In accordance with the entropy principle of thermodynamics, under spontaneous evolutions, physical systems always evolve towards states with equal or greater randomness. But, where…
Timelike correlations and quantum tensor product structure
Samrat Sen, Edwin Peter Lobo, Ram Krishna Patra +4
The state space structure for a composite quantum system is postulated among several mathematically consistent possibilities that are compatible with local quantum description. For…
Certifying beyond quantumness of locally quantum no-signalling theories through quantum input Bell test
Edwin Peter Lobo, Sahil Gopalkrishna Naik, Samrat Sen +3
Physical theories constrained with local quantum structure and satisfying the no-signalling principle can allow beyond-quantum global states. In a standard Bell experiment, correla…
Thermodynamics of local baths in the context of work extraction
Tamal Guha, Mir Alimuddin, Amit Mukherjee +3
We consider locally thermal states (for two qubits) with certain amount of quantum entanglement present between them. Unlike previous protocols we show how work can be extracted by…
Quantum Advantage for Shared Randomness Generation
Tamal Guha, Mir Alimuddin, Sumit Rout +3
Sharing correlated random variables is a resource for a number of information theoretic tasks such as privacy amplification, simultaneous message passing, secret sharing and many m…
Harnessing Causal Indefiniteness for Accessing Locally Inaccessible Data
Sahil Gopalkrishna Naik, Samrat Sen, Ram Krishna Patra +4
Recent studies suggest that physical theories can exhibit indefinite causal structures, where the causal order of events is fundamentally undefined yet logically consistent. Beyond…
Overcoming Traditional No-Go Theorems: Quantum Advantage in Multiple Access Channels
Ananya Chakraborty, Sahil Gopalkrishna Naik, Edwin Peter Lobo +5
Extension of point-to-point communication model to the realm of multi-node configurations finds a plethora of applications in internet and telecommunication networks. Here, we esta…
When Mei-Gu Guan's 1960 Postmen Get Empowered with Bell's 1964 Nonlocal Correlations, or, Nonlocal Advantage in Vehicle Routing Problem
Abhishek Banerjee, Pratapaditya Bej, Amit Mukherjee +3
Vehicle routing problems, a comprehensive problem category originated from the seminal Chinese Postman Problem (first investigated by Chinese mathematician Mei-Gu Guan), entail str…
Entanglement in the energy-constrained prepare-and-measure scenario: applications to randomness certification and channel discrimination
Raffaele D'Avino, Gabriel Senno, Mir Alimuddin +1
Quantum information tasks are often analyzed under varying trust assumptions about the devices involved. The semi-device-independent (SDI) framework offers a balance between needed…
Independence of work and entropy for equal energetic finite quantum systems: Passive state energy as an entanglement quantifier
Mir Alimuddin, Tamal Guha, Preeti Parashar
Although entropy is a necessary and sufficient quantity to characterize the order of work content for equal energetic (EE) states in the asymptotic limit, for the finite quantum sy…
Principle of information causality rationalizes quantum composition
Ram Krishna Patra, Sahil Gopalkrishna Naik, Edwin Peter Lobo +4
Principle of information causality, proposed as a generalization of no signaling principle, has efficiently been applied to outcast beyond quantum correlations as unphysical. In th…
Convex Optimization Approaches to Optimal Teleportation Fidelity in Linear Three-Party Networks
Arkaprabha Ghosal, Jatin Ghai, Tanmay Saha +2
We study the maximum achievable quantum teleportation fidelity between two distant parties, Alice and Charlie, where each of them share a bipartite quantum state only with a common…
Composition of multipartite quantum systems: perspective from time-like paradigm
Sahil Gopalkrishna Naik, Edwin Peter Lobo, Samrat Sen +5
Figuring out the physical rationale behind natural selection of quantum theory is one of the most acclaimed quests in quantum foundational research. This pursuit has inspired sever…
Experimental Verification of Many-Body Entanglement Using Thermodynamic Quantities
Jitendra Joshi, Mir Alimuddin, T S Mahesh +1
The phenomenon of quantum entanglement underlies several important protocols that enable emerging quantum technologies. Entangled states, however, are extremely delicate and often…
Ergotropic characterization of continuous variable entanglement
Beatriz Polo-RodrÃguez, Federico Centrone, Gerardo Adesso +1
Continuous-variable quantum thermodynamics in the Gaussian regime provides a promising framework for investigating the energetic role of quantum correlations, particularly in optic…
Bound on Ergotropic Gap for Bipartite Separable States
Mir Alimuddin, Tamal Guha, Preeti Parashar
Presence of correlations among the constituent quantum systems has a great relevance in thermodynamics. Significant efforts have been devoted to investigate the role of correlation…
Exploring super-additivity of coherent information of noisy quantum channels through Genetic algorithms
Govind Lal Sidhardh, Mir Alimuddin, Manik Banik
Machine learning techniques are increasingly being used in fundamental research to solve various challenging problems. Here we explore one such technique to address an important pr…
Entanglement-swapping measurements for deterministic entanglement distribution
Mir Alimuddin, Jaemin Kim, Antonio AcÃn +1
Entanglement swapping is a key primitive for distributing entanglement across nodes in quantum networks. In standard protocols, the outcome of the intermediate measurement determin…
Ergodiscord: An Operational and Distinct Notion of Quantumness of Correlations
Mir Alimuddin, Snehasish Roy Chowdhury, Ram Krishna Patra +4
Nonclassicality in composite quantum systems depicts several puzzling manifestations, with Einstein-Podolsky-Rosen entanglement, Schrödinger steering, and Bell nonlocality being t…
Quantum Advantage: A Single Qubit's Experimental Edge in Classical Data Storage
Chen Ding, Edwin Peter Lobo, Mir Alimuddin +5
We implement an experiment on a photonic quantum processor establishing efficacy of the elementary quantum system in classical information storage. The advantage is established by…
Repeater-Based Quantum Communication Protocol: Maximizing Teleportation Fidelity with Minimal Entanglement
Arkaprabha Ghosal, Jatin Ghai, Tanmay Saha +2
Transmitting unknown quantum states to distant locations is crucial for distributed quantum information protocols. The seminal quantum teleportation scheme achieves this feat while…
Exploring Non-Markovianity in Ergodic Channels: Measuring Memory Retention through Ergotropy
Ritam Basu, Anish Chakraborty, Himanshu Badhani +2
In this work we introduce and characterize a broad class of quantum operations with a unique fixed point, termed quantum ergodic channels. We derive Lindblad-type master equations…
Thermodynamic Signatures of Genuinely Multipartite Entanglement
Samgeeth Puliyil, Manik Banik, Mir Alimuddin
Theory of bipartite entanglement shares profound similarities with thermodynamics. In this letter we extend this connection to multipartite quantum systems where entanglement appea…
The battery capacity of energy-storing quantum systems
Xue Yang, Yan-Han Yang, Mir Alimuddin +5
The quantum battery capacity is introduced in this letter as a figure of merit that expresses the potential of a quantum system to store and supply energy. It is defined as the dif…
Local Quantum State Marking
Samrat Sen, Edwin Peter Lobo, Sahil Gopalkrishna Naik +8
We propose the task of local state marking (LSM), where some multipartite quantum states chosen randomly from a known set of states are distributed among spatially separated partie…
Indefinite causal order enables perfect quantum communication with zero capacity channels
Giulio Chiribella, Manik Banik, Some Sankar Bhattacharya +6
Quantum mechanics is compatible with scenarios where the relative order between two events can be indefinite. Here we show that two independent instances of a noisy process can beh…
Some no-go results in Quantum Thermodynamics
Tamal Guha, Mir Alimuddin, Preeti Parashar
Thermodynamics is one of the fascinating branches of traditional physics to certify the occurrence of many natural processes. On the other hand, quantum theory is the most acceptab…