Zobrazeno 1 - 10
of 71
pro vyhledávání: '"KARTHIK, H. S."'
Autor:
Karthik, H. S., Gómez, S., Quinteros, F. M., H., Akshata Shenoy, Pawłowski, M., Walborn, S. P., Lima, G., Gómez, E. S.
A $n^d \xrightarrow{p} 1$ Quantum Random Access Code (QRAC) is a communication task where Alice encodes $n$ classical bits into quantum states of dimension $d$ and transmits them to Bob, who performs appropriate measurements to recover the required b
Externí odkaz:
http://arxiv.org/abs/2411.07924
Quantum theory contravenes classical macrorealism by allowing a system to be in a superposition of two or more physically distinct states, producing physical consequences radically different from that of classical physics. We show that a system, upon
Externí odkaz:
http://arxiv.org/abs/2411.02301
Autor:
Sudha, Devi, A. R. Usha, Karthik, B. N., Karthik, H. S., H, Akshata Shenoy, Mallesh, K. S., Rao, A. V. Gopala
The Bloch sphere provides an elegant way of visualizing a qubit. Analogous representation of the simplest composite state of two-qubits has attracted significant attention. Here we present a detailed mathematical analysis of the real-matrix parametri
Externí odkaz:
http://arxiv.org/abs/2402.09258
Extending the mathematical framework of Phys. Rev. A 102, 052419 (2020) we construct Lorentz invariant quantities of pure three-qubit states. This method serves as a bridge between the well-known local unitary (LU) invariants viz. concurrences and th
Externí odkaz:
http://arxiv.org/abs/2310.02900
Autor:
Anjali, K., Reena, I., Sudha, Divyamani, B. G., Karthik, H. S., Mallesh, K. S., Devi, A. R. Usha
Publikováno v:
Quantum Inf Process 21, 326 (2022)
The quantum steering ellipsoid inscribed inside the Bloch sphere offers an elegant geometric visualization of two-qubit states shared between Alice and Bob. The set of Bloch vectors of Bob's qubit, steered by Alice via all possible local measurements
Externí odkaz:
http://arxiv.org/abs/2208.03024
Publikováno v:
International Journal of Quantum InformationVol. 20, No. 07, 2250023 (2022)
We employ the Margenau-Hill (MH) correspondence rule for associating classical functions with quantum operators to construct quasi-probability mass functions. Using this we obtain the fuzzy one parameter quasi measurement operator (QMO) characterizin
Externí odkaz:
http://arxiv.org/abs/2111.13934
Publikováno v:
Chinese Physics B, Volume 31, Number 6, 060301 (2022)
We show that violation of variance based local sum uncertainty relation (LSUR) for angular momentum operators of a bipartite system, proposed by Hofmann and Takeuchi~[Phys.Rev.A {\bf 68}, 032103 (2003)], reflects entanglement in the equal bipartition
Externí odkaz:
http://arxiv.org/abs/2103.15731
Autor:
Sudha, Karthik, H. S., Pal, Rajarshi, Akhilesh, K. S., Ghosh, Sibashish, Mallesh, K. S., Devi, A. R. Usha
Publikováno v:
Phys. Rev. A 102, 052419 (2020)
Canonical forms of two-qubits under the action of stochastic local operations and classical communications (SLOCC) offer great insight for understanding non-locality and entanglement shared by them. They also enable geometric picture of two-qubit sta
Externí odkaz:
http://arxiv.org/abs/2007.00697
Autor:
Anjali, K., Hejamadi, Akshata Shenoy, Karthik, H. S., Sahu, Shradhanjali, Sudha, Devi, A. R. Usha
Publikováno v:
Quantum Information Processing (2021) 20:187
We explore nonlocality of three-qubit pure symmetric states shared between Alice, Bob and Charlie using the Clauser-Horne-Shimony-Holt (CHSH) inequality. We make use of the elegant parametrization in the canonical form of these states, proposed by Me
Externí odkaz:
http://arxiv.org/abs/2005.02943
Publikováno v:
Phys. Rev. A 103, 032420 (2021)
We investigate the three-term Leggett-Garg inequality (LGI) for a two-level quantum system undergoing parity-time (PT ) symmetric dynamics governed by a non-Hermitian Hamiltonian, when a sequence of dichotomic projective measurements are carried out
Externí odkaz:
http://arxiv.org/abs/1907.02879