# Experimental demonstration of probabilistic quantum cloning.

@article{Chen2011ExperimentalDO, title={Experimental demonstration of probabilistic quantum cloning.}, author={Hongwei Chen and Dawei Lu and Bo Chong and Gan Qin and Xianyi Zhou and Xinhua Peng and Jiangfeng Du}, journal={Physical review letters}, year={2011}, volume={106 18}, pages={ 180404 } }

The method of quantum cloning is divided into two main categories: approximate and probabilistic quantum cloning. The former method is used to approximate an unknown quantum state deterministically, and the latter can be used to faithfully copy the state probabilistically. Thus far, many approximate cloning machines have been experimentally demonstrated, but probabilistic cloning remains an experimental challenge, as it requires more complicated networks and a higher level of precision control…

## 30 Citations

Sequential quantum cloning under real-life conditions

- Physics
- 2012

We consider a sequential implementation of the optimal quantum cloning machine of Gisin and Massar and propose optimization protocols for experimental realization of such a quantum cloner subject to…

Duplicating classical bits with universal quantum cloning machine

- PhysicsScience China Physics, Mechanics & Astronomy
- 2018

It seems there is a large gap between quantum cloning and classical duplication since quantum mechanics forbid perfect copies of unknown quantum states. In this paper, we prove that a classical…

Probabilistic quantum cloning of N quantum states

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- 2019

Probabilistically creating n perfect clones from m copies for one of N priori known quantum states with minimum failure probability is a long-standing problem. We provide a rigorous proof for the…

Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states

- Physics2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
- 2017

An experimental demonstration of probabilistic cloning of arbitrary coherent states that clearly surpasses the no-cloning limit is reported, based on a hybrid linear amplifier that combines an ideal deterministic linear amplifier with a heralded measurement-based noiseless amplifier.

Geometrical analysis of probabilistic quantum cloning and identification of N states

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Creating n perfect clones from m copies of one of N prior known quantum states with minimum failure probability is a long-standing problem. We present a general geometrical form of the sufficient and…

High-fidelity quantum cloning of two nonorthogonal quantum states via weak measurements

- PhysicsPhysical Review A
- 2019

We propose a scheme to enhance the fidelity of symmetric quantum cloning machine using a weak measurement. By adjusting the intensity of weak measurement parameter $p$, we obtain the copies with…

Probabilistic Cloning of two Single-Atom States via Thermal Cavity

- Physics
- 2016

We propose a cavity QED scheme for implementing the 1 → 2 probabilistic quantum cloning (PQC) of two single-atom states. In our scheme, after the to-be-cloned atom and the assistant atom passing…

Probabilistic cloning of a single-atom state via cavity QED

- PhysicsQuantum Inf. Process.
- 2015

We propose a scheme for probabilistically cloning a two-level state of an atom to a polarization photon via cavity QED system combined with linear optics elements. By choosing appropriate parameters,…

Random quantum evolution

- PhysicsQuantum Inf. Process.
- 2013

It is obtained that universal random evolutions change the generic unknown pure states into their orthogonal states approximately and the von Neumann entropy with constants is distorted.

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