Generation of quantum states with nonlinear squeezing by Kerr nonlinearity
نویسندگان
چکیده
Quantum states with nonlinear squeezing are a necessary resource for deterministic implementation of high-order quadrature phase gates that are, in turn, sufficient advanced quantum information processing. We demonstrate this class can be deterministically prepared by employing single Kerr gate accompanied suitable Gaussian The required coupling depends on the energy initial system and made arbitrarily small. also employ numerical simulations to analyze effects imperfections show which extent they neglected.
منابع مشابه
Complete quantum teleportation with a kerr nonlinearity
We present a scheme for the quantum teleportation of the polarization state of a photon employing a cross-Kerr medium. The experimental feasibility of the scheme is discussed and we show that, using the recently demonstrated ultraslow light propagation in cold atomic media, our proposal can be realized with presently available technology.
متن کاملGeneration of four-photon polarization entangled decoherence-free states with cross-Kerr nonlinearity
We propose a theoretical protocol for preparing four-photon polarization entangled decoherence-free states, which are immune to the collective noise. With the assistance of the cross-Kerr nonlinearities, a two-photon spatial entanglement gate, two controlled-NOT gates, a four-photon polarization entanglement gate are inserted into the circuit, where X homodyne measurements are aptly applied. Co...
متن کاملQuantum control gates with weak cross-Kerr nonlinearity
In this paper, with the weak cross-Kerr nonlinearity, we first present a special experimental scheme called controlled-path gate with which the realization of all possible bipartite positive-operator-value measurements of two-photon polarization states may be nearly deterministic. Following the same technique, the realization of quantum control gates, including the controlled-NOT gate, Fredkin ...
متن کاملQuantum computation with Kerr-nonlinear photonic crystals
In this paper, we consider a method for implementing a quantum logic gate with photons whose wave function propagates in a one-dimensional Kerr-nonlinear photonic crystal. The photonic crystal causes the incident photons to undergo Bragg reflection by its periodic structure of dielectric materials and forms the photonic band structure, namely, the light dispersion relation. This dispersion rela...
متن کاملMeasurement-Induced Strong Kerr Nonlinearity for Weak Quantum States of Light.
Strong nonlinearity at the single photon level represents a crucial enabling tool for optical quantum technologies. Here we report on experimental implementation of a strong Kerr nonlinearity by measurement-induced quantum operations on weak quantum states of light. Our scheme coherently combines two sequences of single photon addition and subtraction to induce a nonlinear phase shift at the si...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2021
ISSN: ['1094-4087']
DOI: https://doi.org/10.1364/oe.427637