Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Teklu, Berihu"'
Autor:
Kussia, Abebe Senbeto, Darge, Tewodros Yirgashewa, Tesfahannes, Tesfay Gebremariam, Bimeraw, Abeba Teklie, Teklu, Berihu
We address the dynamical bipartite entanglement in an opto-electro-mechanical system that involves a three-level atom. The system consists of a degenerate three-level atom, a mechanical resonator, an optical cavity, and a microwave cavity. By utilizi
Externí odkaz:
http://arxiv.org/abs/2406.16682
We address quantum metrology in critical spin chains with anisotropy and Dzyaloshinskii-Moriya (DM) interaction, and show how local and quasi-local measurements may be exploited to characterize global properties of the systems. In particular, we eval
Externí odkaz:
http://arxiv.org/abs/2405.20296
Publikováno v:
Annalen der Physik 536(3), 2300400 (2024)
We investigate the role of nonlinearity via optical parametric oscillator on the entropy production rate and quantum correlations in a hybrid optomechanical system. Specifically, we derive the modified entropy production rate of an optical parametric
Externí odkaz:
http://arxiv.org/abs/2303.11095
In a hybrid quantum system composed of two quantum wells placed inside a cavity with a moving end mirror pumped by bichromatic coherent light, we address the formation of squeezed states of a mechanical resonator. The exciton mode and mechanical reso
Externí odkaz:
http://arxiv.org/abs/2302.00534
Publikováno v:
Phys. Rev. Research 5, 013185 (2023)
We address multiparameter quantum estimation for coherently driven nonlinear Kerr resonators in the presence of loss. In particular, we consider the realistic situation in which the parameters of interest are the loss rate and the nonlinear coupling,
Externí odkaz:
http://arxiv.org/abs/2212.05117
Publikováno v:
Sci Rep 13, 3833 (2023)
We propose a scheme to improve magnon-photon-phonon entanglement in cavity magnomechanics using coherent feedback loop. In addition, we prove that the steady state and dynamical state of the system is a genuine tripartite entanglement state. We use t
Externí odkaz:
http://arxiv.org/abs/2211.17052
We address propagation and entanglement of Gaussian states in optical media characterised by non-trivial spectral densities. In particular, we consider environments with a finite bandwidth and show that in the low temperature regime: i) secular terms
Externí odkaz:
http://arxiv.org/abs/2205.07837
Autor:
Teklu, Berihu
Publikováno v:
Physics Letters A 432 (2022) 128022
We address the non-Markovian entanglement dynamics for bimodal continuous variable quantum systems interacting with two independent structured reservoirs. We derive an analytical expression for the entanglement of formation without performing the Mar
Externí odkaz:
http://arxiv.org/abs/2202.06313
Autor:
Candeloro, Alessandro, Razavian, Sholeh, Piccolini, Matteo, Teklu, Berihu, Olivares, Stefano, Paris, Matteo G. A.
Active optical media leading to interaction Hamiltonians of the form $ H = \tilde{\lambda}\, (a + a^{\dagger})^{\zeta}$ represent a crucial resource for quantum optical technology. In this paper, we address the characterization of those nonlinear med
Externí odkaz:
http://arxiv.org/abs/2109.08058
Publikováno v:
Quantum Inf Process 20, 62 (2021)
The production and manipulation of quantum correlation protocols will play a central role where the quantum nature of the correlation can be used as a resource to yield properties unachievable within a classical framework is a very active and importa
Externí odkaz:
http://arxiv.org/abs/2012.04220