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We propose here a fully backaction-evading scheme for the measurement of the entanglement between two nanomechanical resonators. The system, which consists of two mechanical oscillators, coupled to a single mode of an electromagnetic…

Quantum Physics · Physics 2019-09-04 Francesco Massel

Highly resonant photonic structures, such as cavities and metasurfaces, can dramatically enhance the efficiency of nonlinear processes by utilizing strong optical field enhancement at the resonance. The latter, however, comes at the expense…

Optics · Physics 2024-05-07 Maxim R. Shcherbakov , Pavel Shafirin , Gennady Shvets

We show how to create maximal entanglement between spectrally distinct solid-state emitters embedded in a waveguide interferometer. By revealing the rich underlying structure of multi-photon scattering in emitters, we show that a two-photon…

Quantum Physics · Physics 2019-07-17 David L. Hurst , Kristoffer B. Joanesarson , Jake Iles-Smith , Jesper Mørk , Pieter Kok

The relationship among the entanglement creation within coherently pumped and closely spaced two-level emitters longitudinally coupled with a single-mode boson field, and the subsequent quantum cooling of the boson mode is investigated.…

Quantum Physics · Physics 2020-04-22 Elena Cecoi , Viorel Ciornea , Aurelian Isar , Mihai A. Macovei

In this work, a genuine mechanism of entanglement protection of a two-qubit system interacting with a dissipative common reservoir is investigated. Based on the generating of bound state for the system-reservoir, we show that stronger bound…

Quantum Physics · Physics 2018-05-11 N. Behzadi , B. Ahansaz , E. Faizi , H. Kasani

In this work, we investigate quantum entanglement and work extraction in two distinct optomechanical systems. The first system consists of two spatially separated Fabry-P\'erot cavities driven by squeezed light in the resolved-sideband…

Quantum Physics · Physics 2025-06-25 Hamza Harraf , M'bark Amghar , Wiam Kaydi , Mohamed Amazioug , Rachid Ahl Laamara

We study theoretically entanglement and operator growth in a spin system coupled to an environment, which is modeled with classical dephasing noise. Using exact numerical simulations we show that the entanglement growth and its fluctuations…

Statistical Mechanics · Physics 2018-11-16 Michael Knap

We propose a triply-resonant electro-optic modulator architecture which maximizes modulation efficiency using simultaneous resonant enhancement of the RF drive signal, the optical pump, and the generated optical sideband. Optical…

Optics · Physics 2020-05-20 Hayk Gevorgyan , Anatol Khilo , Yossef Ehrlichman , Miloš Popović

The piezoelectric optomechanical devices supply a promising experimental platform to realize the coherent and effective control and measurement of optical circuits working in Terahertz (THz) frequencies via superconducting electron devices…

Quantum Physics · Physics 2020-11-16 Quanzhen Ding , Peng Zhao , Yonghong Ma , Yusui Chen

The role of entanglement in determining the non-classicality of a given interaction has gained significant traction over the last few years. In particular, as the basis for new experimental proposals to test the quantum nature of the…

Quantum Physics · Physics 2023-11-15 A. Douglas K. Plato , Dennis Rätzel , Chuanqi Wan

Quantum transduction between microwave and optics can be realized by quantum teleportation if given reliable microwave-optical entanglement, namely entanglement-based quantum transduction. To realize this protocol, an entangled source with…

Quantum Physics · Physics 2020-04-01 Changchun Zhong , Xu Han , Hong X. Tang , Liang Jiang

When a metastable state decays into radiation, there must be entanglement between the radiation and the decaying system, as well as between radiation collected at late and early times. We study the interplay between these two types of…

Quantum Physics · Physics 2026-04-13 Sergei Khlebnikov

Particle entanglement is a fundamental resource upon which are based many quantum technologies. However, the up-to-now best sources of entangled photons rely on parametric down-conversion processes, which are optimal only at certain…

We describe a method for generating entanglement between two spatially separated dipoles coupled to optical micro-cavities. The protocol works even when the dipoles have different resonant frequencies and radiative lifetimes. This method is…

Quantum Physics · Physics 2009-11-13 Deepak Sridharan , Edo Waks

We analyze an optomechanical system formed by a mechanical mode and the two optical modes of an optomechanical cavity for the realization of a strongly quantum correlated three-mode system. We show that the steady state of the system shows…

Quantum Physics · Physics 2014-04-29 Neha Aggarwal , Kamanasish Debnath , Sonam Mahajan , Aranya B. Bhattacherjee , Man Mohan

We study the entanglement and the energy density of the radiation emitted after a local quench in a boundary conformal field theory. We use the operator product expansion (OPE) to predict the early- and late-time behavior of the…

High Energy Physics - Theory · Physics 2023-06-07 Lorenzo Bianchi , Stefano De Angelis , Marco Meineri

A quantum transducer converts an input signal to an output probe at a distant frequency band while maintaining the quantum information with high fidelity, which is crucial for quantum networking and distributed quantum sensing and…

Quantum Physics · Physics 2024-12-24 Haowei Shi , Quntao Zhuang

Entanglement serves as a core resource for quantum information technologies, including applications in quantum cryptography, quantum metrology, and quantum communication. In this study, we give a unifying description of the stationary…

Quantum Physics · Physics 2024-11-11 Oumayma El Bir , Abderrahim Lakhfif , Abdallah Slaoui

In multi-qubit superconducting systems utilizing flip-chip technology, achieving high accuracy in resonator frequencies is of paramount importance, particularly when multiple resonators share a common Purcell filter with restricted…

Quantum Physics · Physics 2023-12-12 Yuan Li , Tianhui Wang , Jingjing Hu , Dengfeng Li , Shuoming An

The theory of phase control of coherence, entanglement and quantum steering is developed for an optomechanical system composed of a single mode cavity containing a partially transmitting dielectric membrane and driven by short laser pulses.…

Quantum Physics · Physics 2017-12-25 F. X. Sun , D. Mao , Y. T. Dai , Z. Ficek , Q. Y. He , Q. H. Gong