Zobrazeno 1 - 10
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pro vyhledávání: '"Subrahmanyam V"'
Autor:
Georgia G. Millward, Shane M. Popelka, Anthony G. Gutierrez, William J. Kowallis, Robert L. von Tersch, Subrahmanyam V. Yerramilli
Publikováno v:
Frontiers in Public Health, Vol 11 (2023)
At the peak of the COVID-19 pandemic, pooled surveillance strategies were employed to alleviate the overwhelming demand for clinical testing facilities. A major drawback of most pooled-testing methods is the dilution of positive samples, which leads
Externí odkaz:
https://doaj.org/article/4187b107d8dd4573b7e2800dce289fdc
Publikováno v:
J. Phys.: Condens. Matter 35, 055301 (2023)
A non-Hermitian region connected to semi-infinite Hermitian lattices acts either as a source or as a sink and the probability current is not conserved in a scattering typically. Even a $\mathcal{P}\mathcal{T}$-symmetric region that contains both a so
Externí odkaz:
http://arxiv.org/abs/2205.08859
We investigate the Loschmidt echo in a one-dimensional spin chain having Kitaev-type interaction in constant and kicked magnetic fields. The Loschmidt echo for the initial states having different magnon excitations shows long-time revivals for smalle
Externí odkaz:
http://arxiv.org/abs/2204.05564
Autor:
Sur, Saikat, Subrahmanyam, V.
Publikováno v:
Quantum Information Processing (2022) 21:301
We investigate the propagation of local bipartite quantum correlations, along with the tripartite mutual information to characterize the information scrambling through dynamical evolution of spin chains. Starting from an initial state with the first
Externí odkaz:
http://arxiv.org/abs/1909.06056
Akademický článek
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Autor:
Sur, Saikat, Subrahmanyam, V.
The Loschmidt echo is investigated to track the effect of the local QDP. It is also quite sensitive to whether the background dynamics is integrable or not. For the integrable case, viz. the Heisenberg model, the Loschmidt echo depends on the paramet
Externí odkaz:
http://arxiv.org/abs/1810.09927
Autor:
Sur, Saikat, Subrahmanyam, V.
The effect of a local instantaneous quantum dynamical process (QDP), either unitary or non-unitary, on the quantum state transfer through a unitary Hamiltonian evolution is investigated for both integrable and non-integrable dynamics. There are inter
Externí odkaz:
http://arxiv.org/abs/1805.11795
Publikováno v:
Phys. Rev. A 98, 052303 (2018)
The entanglement and quantum correlation measures have been investigated for the ground state of a spin chain with a Kitaev-type exchange interactions on alternating bonds, along with a transverse magnetic field. There is a macroscopic degeneracy in
Externí odkaz:
http://arxiv.org/abs/1805.11798
Autor:
Singh, M. K., Sonay, A., Deniz, M., Agartioglu, M., Asryan, G., Kumar, G. Kiran, Li, H. B., Li, J., Lin, F. K., Lin, S. T., Sharma, V., Singh, L., Singh, V., Subrahmanyam, V. S., Soma, A. K., Wong, H. T., Yang, S. W., Yildirim, I. O., Yue, Q.
We report the performance and characterization of a custom-built hybrid detector consisting of BC501A liquid scintillator for fast neutrons and BC702 scintillator for thermal neutrons. The calibration and the resolution of the BC501A liquid scintilla
Externí odkaz:
http://arxiv.org/abs/1612.00842
Autor:
Sur, Saikat, Subrahmanyam, V.
Publikováno v:
J. Phys. A: Math. Theor. 50 (2017) 205303
We study the dynamics of a one dimensional quantum spin chain evolving from unentangled or entangled initial state. At a given instant of time a quantum dynamical process (ex. measurement) is performed on a single spin at one end of the chain, decohe
Externí odkaz:
http://arxiv.org/abs/1606.07563