Bell’s measure and implementing quantum Fourier transform with orbital angular momentum of classical light

Song, Xin-Bing; Sun, Yifan; Li, Pengyun; Qin, Hongwei; Zhang, Xiangdong

doi:10.1038/srep14113

Cited by 33 publications

(27 citation statements)

References 41 publications

(59 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, the Laguerre-Gaussian modes of classical optical beams we exploit here are OAM eigenstates and solutions of the paraxial wave equation in cylindrical coordinates [31,32]. Thus, OAM and polarization can be chosen as two proper DOFs to encode the four basis states of one ququart, and we particularly describe them by a slightly modified version of the bra-ket notation of quantum states for clarity as [33]…”

Section: Quantum Permutation Algorithmmentioning

confidence: 99%

Implementation of quantum permutation algorithm with classical light

Zhang

Wang

et al. 2019

J. Phys. Commun.

Self Cite

View full text Add to dashboard Cite

We report the experimental implementation of quantum permutation algorithm using polarization and orbital angular momentum of the classical optical beam. The easy-handling optical setup to realize all eight cyclic permutation transformations for an input four-dimensional system has been constructed. The two-to-one speed-up ratio to determine the parity of each permutation has been demonstrated. Moreover, we have theoretically discussed the extension to the case with eight elements, and the limitations on the generalization of our proposal to higher-dimensional cases. Our scheme exhibits outstanding stability and demonstrates that optical quantum computation is possible using classical states of light.

show abstract

Section: Quantum Permutation Algorithmmentioning

confidence: 99%

Implementation of quantum permutation algorithm with classical light

Zhang

Wang

et al. 2019

J. Phys. Commun.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The R. Schützhold’s QPR algorithm is analytically described in the Methods section splitting it into five steps. The most complex parts are the quantum black box 14 , or BB , and the quantum Fourier transform (QFT) 14,15 . The classical computing subunit is needed to run calculations of Laue’s equations in order to localize and specify candidate line-patterns.…”

Section: Introductionmentioning

confidence: 99%

Α Quantum Pattern Recognition Method for Improving Pairwise Sequence Alignment

Prousalis

Konofaos

2019

Sci Rep

View full text Add to dashboard Cite

Quantum pattern recognition techniques have recently raised attention as potential candidates in analyzing vast amount of data. The necessity to obtain faster ways to process data is imperative where data generation is rapid. The ever-growing size of sequence databases caused by the development of high throughput sequencing is unprecedented. Current alignment methods have blossomed overnight but there is still the need for more efficient methods that preserve accuracy in high levels. In this work, a complex method is proposed to treat the alignment problem better than its classical counterparts by means of quantum computation. The basic principal of the standard dot-plot method is combined with a quantum algorithm, giving insight into the effect of quantum pattern recognition on pairwise alignment. The central feature of quantum algorithmic -quantum parallelism- and the diffraction patterns of x-rays are synthesized to provide a clever array indexing structure on the growing sequence databases. A completely different approach is considered in contrast to contemporary conventional aligners and a variety of competitive classical counterparts are classified and organized in order to compare with the quantum setting. The proposed method seems to exhibit high alignment quality and prevail among the others in terms of time and space complexity.

show abstract

“…It has been demonstrated that the quantum bound exists similarly in classical microwaves. The local and nonlocal correlations in the classical optical beams, which violate the Bell inequality, have been demonstrated in a series of works3435363738394041. However, the KCBS contextuality has not been studied in classical wave systems so far.…”

mentioning

confidence: 99%

Experimental contextuality in classical light

Zeng

Song

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

The Klyachko, Can, Binicioglu, and Shumovsky (KCBS) inequality is an important contextuality inequality in three-level system, which has been demonstrated experimentally by using quantum states. Using the path and polarization degrees of freedom of classical optics fields, we have constructed the classical trit (cetrit), tested the KCBS inequality and its geometrical form (Wright’s inequality) in this work. The projection measurement has been implemented, the clear violations of the KCBS inequality and its geometrical form have been observed. This means that the contextuality inequality, which is commonly used in test of the conflict between quantum theory and noncontextual realism, may be used as a quantitative tool in classical optical coherence to describe correlation characteristics of the classical fields.

show abstract

Bell’s measure and implementing quantum Fourier transform with orbital angular momentum of classical light

Cited by 33 publications

References 41 publications

Implementation of quantum permutation algorithm with classical light

Implementation of quantum permutation algorithm with classical light

Α Quantum Pattern Recognition Method for Improving Pairwise Sequence Alignment

Experimental contextuality in classical light

Contact Info

Product

Resources

About