Quantum Fourier Transform in Computational Basis

The conventional Quantum Fourier Transform, with exponential speedup compared to the classical Fast Fourier Transform, has played an important role in quantum computation as a vital part of many quantum algorithms (most prominently, the Shor's factoring algorithm). However, situations arise where it is not sufficient to encode the Fourier coefficients within the quantum amplitudes, for example in the implementation of control operations that depend on Fourier coefficients. In this paper, we detail a new quantum algorithm to encode the Fourier coefficients in the computational basis, with success probability $1-\delta$ and desired precision $\epsilon$. Its time complexity %$\mathcal{O}\big((\log N)^2\log(N/\delta)/\epsilon)\big)$ depends polynomially on $\log(N)$, where $N$ is the problem size, and linearly on $\log(1/\delta)$ and $1/\epsilon$. We also discuss an application of potential practical importance, namely the simulation of circulant Hamiltonians.Comment: revised discussion and reference mainly in section 4, minor changes in the result section, as well as corrected typo

Pemberian Bahan Organic Soil Treatment dan Pupuk Kandang Kotoran Ayam Untuk Perubahan Beberapa sifat Fisik Ultisol

Research to determine the effect of OST ingredients and manure from chicken manure on the physical properties of Ultisol was carried out with a completely randomized design with factorial patterns. The experimental treatment consisted of giving OST, namely P0 = without OST, P1 = 5 g/pot, P2 = 10 g/pot combined with manure, B0 = without manure, B1 = 40 g/pot and B2 = 80 g/pot repeated 3 times. The results showed that bulk density, porosity, soil pore distribution and aggregate stability were affected by OST material, while manure only affected aerase pores, unavailable pore water and aggregate stability

PENGARUH BEBAN KERJA DAN PENGAWASAN TERHADAP PRODUKTIVITAS KERJA KARYAWAN PADA PT. ANGKASA PURA SUPORT CABANG AMBON

Penelitian ini bertujuan untuk menganalisis pengaruh beban kerja dan pengawasan terhadap produktivitas kerja karyawan pada PT. Angkasa Pura Suport Cabang Ambon. Metode penelitian yang digunakan adalah analisis regresi linier berganda dengan sampel karyawan tetap PT. Angkasa Pura Support Cabang Ambon. Pendekatan kuantitatif dengan data dikumpulkan melalui kuesioner yang disebar kepada karyawan PT. Angkasa Pura Suport Cabang Ambon. Analisis data menggunakan regresi linier berganda. Hasil penelitian menunjukkan bahwa beban kerja berpengaruh negatif dan signifikan terhadap produktivitas kerja karyawan dengan koefisien regresi -0,179 (p < 0,05), sedangkan pengawasan berpengaruh positif dan signifikan dengan koefisien regresi 0,310 (p < 0,05). Model regresi yang dihasilkan adalah Y = 1,970 - 0,179X1 + 0,310X2 + e, di mana Y adalah produktivitas kerja, X1 adalah beban kerja, dan X2 adalah pengawasan. Nilai R square sebesar 0,575 menunjukkan bahwa 57,5% variasi produktivitas kerja dapat dijelaskan oleh beban kerja dan pengawasan

Transfer learning in hybrid classical-quantum neural networks

We extend the concept of transfer learning, widely applied in modern machine learning algorithms, to the emerging context of hybrid neural networks composed of classical and quantum elements. We propose different implementations of hybrid transfer learning, but we focus mainly on the paradigm in which a pre-trained classical network is modified and augmented by a final variational quantum circuit. This approach is particularly attractive in the current era of intermediate-scale quantum technology since it allows to optimally pre-process high dimensional data (e.g., images) with any state-of-the-art classical network and to embed a select set of highly informative features into a quantum processor. We present several proof-of-concept examples of the convenient application of quantum transfer learning for image recognition and quantum state classification. We use the crossplatform software library PennyLane to experimentally test a high-resolution image classifier with two different quantum computers, respectively provided by IBM and Rigetti

Pelatihan Penerapan Prinsip Personal Hygiene dan Sanitasi Dalam Pengolahan Ikan Asap di Sentra Ikan Asap Kelurahan Hamadi, Kota Jayapura, Papua

The development of tourism and the creative economy in Indonesia can be seen from the increasing number of culinary tours emerging. Regional governments are given the freedom and authority for regions to regulate and utilize their resources to the maximum to produce products and introduce the potential of a region. One product that is quite popular in Jayapura City is smoked fish. The perpetrators of this business are a group of housewives with the aim of increasing income. The quality of processed fish products is the main thing that needs to be maintained starting from the initial selection of raw materials to handling during distribution of the product in question, such as personal hygiene and sanitation during processing. This is an absolute requirement for food processing, because its effect on the quality and food safety of the products produced. The Ikbal Family Fish Processing Unit (UPI) is one of the smoked fish processing units in Jayapura City which is very active in processing smoked fish products. The results of this activity are that group members understand the importance of using personal protective equipment (PPE) in supporting personal hygiene and sanitation in the production of smoked fish, group members are accustomed to using PPE in the production process and group members are proficient in using vacuum sealer packaging tools to maintain the quality of smoked fish

Quantum circuits with many photons on a programmable nanophotonic chip

Growing interest in quantum computing for practical applications has led to a surge in the availability of programmable machines for executing quantum algorithms. Present day photonic quantum computers have been limited either to non-deterministic operation, low photon numbers and rates, or fixed random gate sequences. Here we introduce a full-stack hardware-software system for executing many-photon quantum circuits using integrated nanophotonics: a programmable chip, operating at room temperature and interfaced with a fully automated control system. It enables remote users to execute quantum algorithms requiring up to eight modes of strongly squeezed vacuum initialized as two-mode squeezed states in single temporal modes, a fully general and programmable four-mode interferometer, and genuine photon number-resolving readout on all outputs. Multi-photon detection events with photon numbers and rates exceeding any previous quantum optical demonstration on a programmable device are made possible by strong squeezing and high sampling rates. We verify the non-classicality of the device output, and use the platform to carry out proof-of-principle demonstrations of three quantum algorithms: Gaussian boson sampling, molecular vibronic spectra, and graph similarity

A guide to the crystallographic analysis of icosahedral viruses

Determining the structure of an icosahedral virus crystal by X-ray diffraction follows very much the same course as conventional protein crystallography. The major differences arise from the relatively large sizes of the particles, which significantly affect the data collection process, data processing and management, and later, the refinement of a model. Most of the other differences are due to the high 5 3 2 point group symmetry of icosahedral viruses. This alters dramatically the means by which initial phases are obtained by molecular substitution, extended to higher resolution by electron density averaging and density modification, and the refinement of the structure in the light of high non-crystallographic symmetry. In this review, we attempt to lead the investigator through the various steps involved in solving the structure of a virus crystal. These steps include the purification of viruses, their crystallization, the recording of X-ray diffraction data, and its reduction to structure amplitudes. It further addresses the problems attending phase determination and ultimately the refinement of a model. Finally, we describe the unique properties of virus crystals and the factors that influence their physical and diffraction properties

Trocas gasosas e fluorescência da clorofila em plantas de berinjela sob lâminas de irrigação

RESUMOA berinjela tem grande importância nutricional e socioeconômica, sendo cultivada e comercializada em vários países, principalmente em ambiente protegido; sua produção, assim como a de inúmeros cultivos agrícolas, é dependente de fatores como água, nutrientes e luz; propôs-se, assim, com este trabalho, avaliar as trocas gasosas, fluorescência da clorofila a e temperatura foliar de berinjela cultivada em ambiente protegido em diferentes lâminas de irrigação. O estudo foi realizado em casa de vegetação utilizando-se delineamento inteiramente casualizado, com 5 tratamentos e oito repetições, totalizando 40 unidades experimentais. Os tratamentos constaram de cinco lâminas de irrigação: 33, 66, 100, 133 e 166% da ETc, as quais corresponderam a 133, 266, 403, 536, 669 mm planta-1 ciclo-1, respectivamente. A taxa fotossintética das plantas de berinjela aumenta com o acréscimo da reposição hídrica. Os valores mais expressivos de trocas gasosas (A, E, gs, Ci, EiUA e EiC) nas plantas de berinjela, de forma geral, foram observados quando se utilizaram, na irrigação, lâminas estimadas entre 123,52 e 166% da ETc. A fluorescência da clorofila aumentou com o aumento das lâminas de irrigação e a temperatura foliar diminuiu em função do aumento da água