1.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Indraprastha Institute of Information Technology DelhiIN68 papers
- Centre National de la Recherche ScientifiqueFR32 papers
- Jawaharlal Nehru UniversityIN30 papers
- Homi Bhabha National InstituteIN25 papers
- Indian Institute of Technology KanpurIN21 papers
- Indian Institute of Science BangaloreIN20 papers
- Indian Institute of Technology BombayIN18 papers
- Max Planck Institute for Chemical Physics of SolidsDE18 papers
- Tata Institute of Fundamental ResearchIN15 papers
- Indian Institute of Technology MadrasIN14 papers
- Carnegie Mellon UniversityUS13 papers
- École Polytechnique Fédérale de LausanneCH13 papers
51 papers · 1 filter
Electric-field control of photon indistinguishability in cascaded decays in quantum dots
Gabriel Undeutsch, Maximilian Aigner, Ailton J. Garcia +8
Photon indistinguishability, entanglement, and antibunching are key ingredients in quantum optics and photonics. Decay cascades in quantum emitters offer a simple method to create…
Quantum thermal machine regimes in the transverse-field Ising model
Vishnu Muraleedharan Sajitha, Bodhaditya Santra, Matthew J. Davis +1
We identify and interpret the possible quantum thermal machine regimes with a transverse-field Ising model as the working substance. In general, understanding the emergence of such…
Error-Mitigated Multi-Layer Quantum Routing
Wenbo Shi, Neel Kanth Kundu, Robert Malaney
Due to the numerous limitations of current quantum devices, quantum error mitigation methods become potential solutions for realizing practical quantum applications in the near ter…
Error-Mitigated Quantum Random Access Memory
Wenbo Shi, Neel Kanth Kundu, Matthew R. McKay +1
As an alternative to quantum error correction, quantum error mitigation methods, including Zero-Noise Extrapolation (ZNE), have been proposed to alleviate run-time errors in curren…
Experimental generation and characterization of partially spatially coherent qubits
Preeti Sharma, Sakshi Rao, Bhaskar Kanseri
Partially spatially coherent qubits are more immune to turbulent atmospheric conditions than coherent qubits, which makes them excellent candidates for free-space quantum communica…
Tunneling from general Smith-Volterra-Cantor potential
Vibhav Narayan Singh, Mohammad Umar, Mohammad Hasan +1
We study the tunneling problem from general Smith-Volterra-Cantor (SVC) potential of finite length characterized by the scaling parameter and stage . We show that the SV…
Time-dependent Mandel Q parameter analysis for a hexagonal boron nitride single photon source
Callum Jones, Jolly Xavier, Samir Vartabi Kashanian +3
The time-dependent Mandel Q parameter, Q(T), provides a measure of photon number variance for a light source as a function of integration time. Here, we use Q(T) to characterise si…
Quantum and semi--quantum key distribution in networks
Rajni Bala, Sooryansh Asthana, V. Ravishankar
In this paper, we utilize the potential offered by multidimensional separable states (MSS) for secure and simultaneous distributions of keys in a layered network. We present protoc…
Correlation as a Resource in Unitary Quantum Measurements
Vishal Johnson, Ashmeet Singh, Reimar Leike +2
Quantum measurement is a physical process. What physical resources and constraints does quantum mechanics require for measurement to produce the classical world we observe? Treatin…
Refractive index profiles for a -symmetric optical structure
Bijan Bagchi, Rahul Ghosh, Sauvik Sen
By mapping the scalar Helmholtz equation (SHE) to the Schrodinger form we investigate the behaviour of optical structure when the refractive index distribution a…
Combating quantum errors: an integrated approach
Rajni Bala, Sooryansh Asthana, V. Ravishankar
Near-term quantum communication protocols suffer inevitably from channel noises, whose alleviation has been mostly attempted with resources such as multiparty entanglement or sophi…
Combating errors in propagation of orbital angular momentum modes of light in turbulent media
Rajni Bala, Sooryansh Asthana, V. Ravishankar
There is a wealth of simulation, experimental and analytical studies on propagation of orbital angular momentum (OAM) modes through atmospheric and oceanic turbulence.} Using the d…
Dynamics and entanglement in quantum and quantum-classical systems: lessons for gravity
Viqar Husain, Irfan Javed, Suprit Singh
Motivated by quantum gravity, semi-classical theory, and quantum theory on curved spacetimes, we study the system of an oscillator coupled to two spin-1/2 particles. This model pro…
Integrated semi-quantum layered communication
Rajni Bala, Sooryansh Asthana, V. Ravishankar
In recent times, secure quantum communication in layered networks has emerged as an important area of study. In this paper, we harness the potential offered by multidimensional sta…
Quantum simulation of thermodynamics in an integrated quantum photonic processor
F. H. B. Somhorst, R. van der Meer, M. Correa Anguita +16
One of the core questions of quantum physics is how to reconcile the unitary evolution of quantum states, which is information-preserving and time-reversible, with evolution follow…
An Optimized Bidirectional Quantum Teleportation Scheme with the use of Bell states
Mitali Sisodia
Bidirectional quantum teleportation scheme is a two-way quantum communication process, in which two parties simultaneously receive each other information. Recently, in paper [1] (Z…
Error-immune quantum communication
Rajni Bala, V. Ravishankar
Environmental effects on the transmission of a state result, in general, in a change in the information carried by it. To mitigate this, many techniques such as quantum error--corr…
Interrelation of nonclassicality conditions through stabiliser group homomorphism
Sooryansh Asthana
In this paper, we show that coherence witness for a single qubit itself yields conditions for nonlocality and entanglement inequalities for multiqubit systems. It also yields a con…
ADAPT: Mitigating Idling Errors in Qubits via Adaptive Dynamical Decoupling
Poulami Das, Swamit Tannu, Siddharth Dangwal +1
The fidelity of applications on near-term quantum computers is limited by hardware errors. In addition to errors that occur during gate and measurement operations, a qubit is susce…
A decoder for the triangular color code by matching on a Möbius strip
Kaavya Sahay, Benjamin J. Brown
The color code is remarkable for its ability to perform fault-tolerant logic gates. This motivates the design of practical decoders that minimise the resource cost of color-code qu…
Two-way quantum communication using four-qubit cluster state: mutual exchange of quantum information
Vikram Verma, Mitali Sisodia
In the present study, we have proposed a scheme for two-way quantum communication in which the two legitimate participants mutually exchange their quantum information to each other…
State transfer with separable optical beams and variational quantum algorithms with classical light
Sooryansh Asthana, V. Ravishankar
Classical electromagnetic fields and quantum mechanics -- both obey the principle of superposition alike. This opens up many avenues for simulation of a large variety of phenomena…
Quantum communication with invariant separable level systems
Sooryansh Asthana, Rajni Bala, V. Ravishankar
Information is encoded in a qubit in the form of its Bloch vector. In this paper, we propose protocols for remote transfers of information in a known and an unknown qubit to qudits…
Quantum and Randomised Algorithms for Non-linearity Estimation
Debajyoti Bera, Tharrmashastha Sapv
Non-linearity of a Boolean function indicates how far it is from any linear function. Despite there being several strong results about identifying a linear function and distinguish…