Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Abhignan, Venkat"'
Autor:
Abhignan, Venkat
Divergent solutions are ubiquitous with perturbation methods. We use continued function such as continued exponential to converge divergent series in perturbation approaches for energy eigenvalues of Helium, Stark effect and Zeeman effect on Hydrogen
Externí odkaz:
http://arxiv.org/abs/2409.05438
Autor:
Abhignan, Venkat, Srikanth, R.
Quantum key distribution (QKD) can secure cryptographic communication between two distant users, as guaranteed by the laws of quantum mechanics rather than computational assumptions. The twin-field scheme, which employs counter-propagated weak cohere
Externí odkaz:
http://arxiv.org/abs/2409.04204
Autor:
Abhignan, Venkat
We study a variety of finite quasiperiodic configurations with magnetodielectric $\delta$-function plates created from simple substitution rules. While previous studies for $N$ bodies involved interactions mediated by a scalar field, we extended our
Externí odkaz:
http://arxiv.org/abs/2409.04195
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 fluctuations. Semi-device-independence in this random number generator
Externí odkaz:
http://arxiv.org/abs/2409.04186
Autor:
Abhignan, Venkat
The Casimir energy for $N$ $\delta$-function plates depends on multiple scattering parameter $\Delta$. This $N$ body interaction was distributed into two body interactions with nearest neighbour scattering and next-to-nearest neighbour scattering bas
Externí odkaz:
http://arxiv.org/abs/2406.09096
Publikováno v:
Physica Scripta 99 105131, 2024
Quantum technology can enable secure communication for cryptography purposes using quantum key distribution. Quantum key distribution protocols provide a secret key between two users with security guaranteed by the laws of quantum mechanics. To defin
Externí odkaz:
http://arxiv.org/abs/2406.09091
Autor:
Abhignan, Venkat
Publikováno v:
2023, Physica Scripta, 98, 105018
To investigate Casimir electromagnetic interaction in $N$ bodies, we implement multiple $\delta$-function plates with electric and magnetic properties. We use their optical properties to study the Casimir energy between the plates by implementing mul
Externí odkaz:
http://arxiv.org/abs/2304.10022
Autor:
Abhignan, Venkat
Publikováno v:
Journal of Statistical Physics volume 190 (2023)
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 perturbation parameters related to the physical system, and calculatin
Externí odkaz:
http://arxiv.org/abs/2304.00343
Autor:
Abhignan, Venkat, Muthuganesan, R.
Publikováno v:
Physica Scripta 96 (2021) 125114
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 intrinsic decoherence. Quantitative results were determined, which dep
Externí odkaz:
http://arxiv.org/abs/2303.02381
Autor:
Abhignan, Venkat, Sankaranarayanan, R.
Publikováno v:
The European Physical Journal B (2023)
Resummation methods using continued functions are implemented to converge divergent series appearing in perturbation problems related to continuous phase transitions in field theories. In some cases, better convergence properties are obtained using c
Externí odkaz:
http://arxiv.org/abs/2303.02377