11 citations · 38 across the 13 of their papers we have counts for
13 papers
Decoherence Mitigation with Local NOT Gates in Multipartite Systems
Venkat Abhignan, Raghav Sundararaman, Shriram Pragash M +2
We study the entanglement dynamics of -qubit Bell- and GHZ-type states under an amplitude-damping channel (ADC). We quantify multipartite entanglement using the genuine mu…
Hierarchy of quantum correlations in qubit-qutrit axially symmetric states
Venkat Abhignan, R. Muthuganesan
We investigate quantum correlations in a hybrid qubit-qutrit system subject to both axial and planar single-ion anisotropies, dipolar spin-spin interactions, and Dzyaloshinskii-Mor…
Increasing the secret key rates and point-to-multipoint extension for experimental coherent-one-way quantum key distribution protocol
Venkat Abhignan, Mohit Mittal, Aditi Das +1
Using quantum key distribution (QKD) protocols, a secret key is created between two distant users (transmitter and receiver) at a particular key rate. Quantum technology can facili…
Quasiperiodic arrangement of magnetodielectric -plates: Green's functions and Casimir energies for bodies
Venkat Abhignan
We study a variety of finite quasiperiodic configurations with magnetodielectric -function plates created from simple substitution rules. While previous studies for bodies i…
Randomness in quantum random number generator from vacuum fluctuations with source-device-independence
Megha Shrivastava, Mohit Mittal, Isha Kumari +1
The application for random numbers is ubiquitous. We experimentally build a well-studied quantum random number generator from homodyne measurements on the quadrature of the vacuum…
Twin-field-based multi-party quantum key agreement
Venkat Abhignan, R. Srikanth
Quantum key distribution (QKD) can secure cryptographic communication between two distant users, as guaranteed by the laws of quantum mechanics rather than computational assumption…
Simulations of distributed-phase-reference quantum key distribution protocols
Venkat Abhignan, Abhishek Jamunkar, Gokul Nair +2
Quantum technology can enable secure communication for cryptography purposes using quantum key distribution. Quantum key distribution protocols provide a secret key between two use…
Casimir energy for constant conductivity -plates with a neural network perception
Venkat Abhignan
The Casimir energy for -function plates depends on the multiple scattering parameter . This -body interaction was distributed into interactions with nearest neighbour…
Casimir energy of magnetodielectric -function plates
Venkat Abhignan
To investigate Casimir electromagnetic interaction in bodies, we implement multiple -function plates with electric and magnetic properties. We use their optical properties t…
Extrapolation from hypergeometric functions, continued functions and Borel-Leroy transformation; Resummation of perturbative renormalization functions from field theories
Venkat Abhignan
Physically relevant field-theoretic quantities are usually derived from perturbation techniques. These quantities are solved in the form of an asymptotic series in powers of small…
Effects of intrinsic decoherence on discord-like correlation measures of two-qubit spin squeezing model
Venkat Abhignan, R. Muthuganesan
Quantum decoherence happens when the system interacts with the environment. Quantum correlation behaviours in the two-qubit spin squeezing model are studied under the influence of…
Continued functions and Borel-Leroy transformation: Resummation of six-loop ε-expansions from different universality classes
Venkat Abhignan, R. Sankaranarayanan
We handle divergent ε expansions in different universality classes derived from modified Landau-Wilson Hamiltonian. Landau-Wilson Hamiltonian can cater for describing critical phen…
Casimir-like effect from thermal field fluctuations
Venkat Abhignan, R. Sankaranarayanan
Landau-Ginzburg field theory is usually applied to systems for understanding continuous phase transitions at critical points. Here we analyze the thermal field using a simila…