Zobrazeno 1 - 10
of 141
pro vyhledávání: '"PAL, AMIT KUMAR"'
Autor:
J, Harikrishnan K, Pal, Amit Kumar
We propose a protocol for concentrating bipartite entanglement over a qubit-qudit system from arbitrary number of qubit-qudit states via a truncation of the Hilbert space corresponding to the subsystem containing the qubits to a space that hosts a si
Externí odkaz:
http://arxiv.org/abs/2410.15892
We design a quantum thermal device that can simultaneously and dynamically cool multiple target qubits. Using a setup with three bosonic heat baths, we propose an engineering of interaction Hamiltonian using operators on different subspaces of the fu
Externí odkaz:
http://arxiv.org/abs/2410.15871
Noisy unsharp measurements incorporated in quantum information protocols may hinder performance, reducing the quantum advantage. However, we show that, unlike projective measurements which completely destroy quantum correlations between nodes in quan
Externí odkaz:
http://arxiv.org/abs/2406.07652
Autor:
J, Harikrishnan K, Pal, Amit Kumar
We investigate the topological-to-non-topological quantum phase transitions (QPTs) occurring in the Kitaev code under local perturbations in the form of local magnetic field and spin-spin interactions of the Ising-type using fidelity susceptibility (
Externí odkaz:
http://arxiv.org/abs/2405.00416
In this short manuscript, we will put some light on the different outcomes when two non-constant meromorphic functions share a value with prescribed weight two.
Comment: arXiv admin note: text overlap with arXiv:1608.02125 by other authors
Comment: arXiv admin note: text overlap with arXiv:1608.02125 by other authors
Externí odkaz:
http://arxiv.org/abs/2403.17033
We consider a star-network of $n=n_0+n_p$ spin-$\frac{1}{2}$ particles, where interaction between $n_0$ central spins and $n_p$ peripheral spins are of the XYZ-type. In the limit $n_0/n_p\ll 1$, we show that for odd $n$, the ground state is doubly de
Externí odkaz:
http://arxiv.org/abs/2307.15949
Publikováno v:
Physics Letters A 511 (2024) 129543
We consider transfer of single and multi-qubit states on a quasi-1D lattice, where the time evolutions involved in the state transfer protocol are generated by only 1D Hamiltonians. We use the quasi-1D isotropic Heisenberg model under a magnetic fiel
Externí odkaz:
http://arxiv.org/abs/2306.08440
Publikováno v:
Phys. Rev. A 110, 032408 (2024)
In this paper, we calculate entanglement in the isotropic Heisenberg model in a magnetic field on a two-dimensional rectangular zig-zag lattice in the strong rung-coupling limit, using the one-dimensional XXZ model as a proxy. Focusing on the leading
Externí odkaz:
http://arxiv.org/abs/2301.04615
Autor:
J., Harikrishnan K., Pal, Amit Kumar
Publikováno v:
Phys. Rev. A 108, 032404 (2023)
Characterizing large noisy multiparty quantum states using genuine multiparty entanglement is a challenging task. In this paper, we calculate lower bounds of genuine multiparty entanglement localized over a chosen multiparty subsystem of multi-qubit
Externí odkaz:
http://arxiv.org/abs/2211.01064
In this note, we introduce a new kind of pair of finite range sets in $\mathbb{C}$ for meromorphic functions corresponding to their uniqueness, i.e., how two meromorphic functions are uniquely determined by their two finite shared sets.
Comment:
Comment:
Externí odkaz:
http://arxiv.org/abs/2211.00506