Zobrazeno 1 - 10
of 11
pro vyhledávání: '"K Rama Koteswara Rao"'
Autor:
K Rama Koteswara Rao, Dieter Suter
Publikováno v:
New Journal of Physics, Vol 22, Iss 10, p 103065 (2020)
Nitrogen-vacancy (NV) centers in diamond have become an important tool for quantum technologies. All of these applications rely on long coherence times of electron and nuclear spins associated with these centers. Here, we study the energy level anti-
Externí odkaz:
https://doaj.org/article/73286b29d0e64374b74a0ad492b282b5
Publikováno v:
Physical Review A
Initializing quantum registers with high fidelity is a fundamental precondition for many applications like quantum information processing and sensing. The electronic and nuclear spins of a nitrogen-vacancy (NV) center in diamond form an interesting h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69d9ba31d5dcfe8bd6fb494fe39f1ca5
Autor:
Dieter Suter, K. Rama Koteswara Rao
Publikováno v:
Physical Review B. 94
The nitrogen-vacancy (NV) center in diamond has attractive properties for a number of quantum technologies that rely on the spin angular momentum of the electron and the nuclei adjacent to the center. The nucleus with the strongest interaction is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed1d54d97e2ee22f71173293ecc0c6b2
https://doi.org/10.1103/physrevb.94.060101
https://doi.org/10.1103/physrevb.94.060101
Autor:
K. Rama Koteswara Rao, Dieter Suter
Quantum systems driven by strong oscillating fields are the source of many interesting physical phenomena. In this work, we experimentally study the dynamics of a two-level system of a single spin driven in the strong-driving regime where the rotatin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ff20291a47a3bc7b69e2ba27fabff81
Publikováno v:
Physical Review A. 90
Precise experimental implementation of unitary operators is one of the most important tasks for quantum information processing. Numerical optimization techniques are widely used to find optimized control fields to realize a desired unitary operator.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44858fcda083a99d5615882990248697
https://doi.org/10.1103/physreva.90.012306
https://doi.org/10.1103/physreva.90.012306
Publikováno v:
IndraStra Global.
The standard method of quantum state tomography (QST) relies on the measurement of a set of noncommuting observables, realized in a series of independent experiments. Ancilla-assisted QST (AAQST) proposed by Nieuwenhuizen and co-workers [Phys. Rev. L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e48958b63a12a27ff6aa36d39a5a57f3
http://eprints.iisc.ac.in/46972/1/Phys_Rev_A_876_062317_2013.pdf
http://eprints.iisc.ac.in/46972/1/Phys_Rev_A_876_062317_2013.pdf
Publikováno v:
Physical Review A. 87
We report an experimental study of recently formulated entropic Leggett-Garg inequality (ELGI) by Usha Devi et al. (arXiv: 1208.4491v2 (2012)). This inequality places a bound on the statistical measurement outcomes of dynamical observables describing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8eadb6179406ce91394fb7eebac2b99f
https://doi.org/10.1103/physreva.87.052102
https://doi.org/10.1103/physreva.87.052102
Publikováno v:
IndraStra Global.
We report a nuclear magnetic resonance experiment, which simulates the quantum transverse Ising spin system in a triangular configuration, and further demonstrate that multipartite quantum correlations can be used to distinguish between the frustrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ccc10918030a41ecdb393893f16bab9
https://igi.indrastra.com/items/show/210347
https://igi.indrastra.com/items/show/210347
Autor:
K. Rama Koteswara Rao, Anil Kumar
Publikováno v:
International Journal of Quantum Information. 10:1250039
The evolution of entanglement in a 3-spin chain with nearest-neighbor Heisenberg-XY interactions for different initial states is investigated here. In an NMR experimental implementation, we generate multipartite entangled states starting from initial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a54f36570c6e2e833a8b9c566c731c5c
https://doi.org/10.1142/s0219749912500396
https://doi.org/10.1142/s0219749912500396
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