Zobrazeno 1 - 10
of 406
pro vyhledávání: '"Rao, K. Rama"'
Autor:
Rao, K. Rama Koteswara, Suter, Dieter
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:
http://arxiv.org/abs/1908.07796
Optimal photon energies for initialization of hybrid spin quantum registers of NV centers in diamond
Publikováno v:
Phys. Rev. A 101, 013835 (2020)
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:
http://arxiv.org/abs/1902.10513
Autor:
Rao, K. Rama Koteswara, Suter, Dieter
Publikováno v:
Phys. Rev. A 95, 053804 (2017)
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:
http://arxiv.org/abs/1610.04512
Autor:
Rao, K. Rama Koteswara, Suter, Dieter
Publikováno v:
Physical Review B 94, 060101(R) (2016)
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:
http://arxiv.org/abs/1603.09257
Publikováno v:
Phys. Rev. A 90, 012306 (2014)
We report an experimental quantum simulation of unitary dynamics of an XY spin chain with pre-engineered couplings. Using this simulation, we demonstrate the mirror inversion of quantum states, proposed by Albanese et al. [Phys. Rev. Lett. 93, 230502
Externí odkaz:
http://arxiv.org/abs/1307.5220
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:
http://arxiv.org/abs/1304.5851
Autor:
Rao, K. Rama Koteswara, Katiyar, Hemant, Mahesh, T. S., De, Aditi Sen, Sen, Ujjwal, Kumar, Anil
Publikováno v:
Phys. Rev. A 88, 022312 (2013)
We report a nuclear magnetic resonance experiment, which simulates the quantum transverse Ising spin system in a triangular configuration and further show that the monogamy of quantum correlations can be used to distinguish between the frustrated and
Externí odkaz:
http://arxiv.org/abs/1301.1834
Publikováno v:
In Journal of Building Engineering January 2019 21:186-199
Autor:
Rao, K. Rama Koteswara, Kumar, Anil
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:
http://arxiv.org/abs/1109.1954
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 July 2017 434:118-125