Results 61 to 70 of about 240,977 (170)

Theoretical investigation of electronic excitation transfer between chlorophylls in light-harvesting antenna of photosystem ii using quantum computers

Química Nova, 2012
The excitation energy transfer between chlorophylls in major and minor antenna complexes of photosystem II (PSII) was investigated using quantum Fourier transforms.
Maryam Dehestani, Somaie Shojaei, Azita Khosravan   +2 more
doaj   +1 more source

Quantum Fourier Transform Using Dynamic Circuits

Physical Review Letters
In dynamic quantum circuits, classical information from mid-circuit measurements is fed forward during circuit execution. This emerging capability of quantum computers confers numerous advantages that can enable more efficient and powerful protocols by drastically reducing the resource requirements for certain core algorithmic primitives. In particular,
Elisa Bäumer, Vinay Tripathi, Alireza Seif, Daniel Lidar, Derek S. Wang   +4 more
openaire   +3 more sources

Quantum operation, quantum Fourier transform and semi-definite programming

, 2003
We analyze a class of quantum operations based on a geometrical representation of $d-$level quantum system (or qudit for short). A sufficient and necessary condition of complete positivity, expressed in terms of the quantum Fourier transform, is found ...
Audenaert, Buzek, Calderbank, Chefles, Choi, Fiurasek, Fujiwara, Fujiwara, Gottesman, King, Kraus, Mingsheng Ying, Nielsen, Runyao Duan, Ruskai, Shor, Sun, Terhal, Vogel, Yuan Feng, Zhengfeng Ji   +20 more
core   +2 more sources

Research on Palmprint Identification Method Based on Quantum Algorithms

The Scientific World Journal, 2014
Quantum image recognition is a technology by using quantum algorithm to process the image information. It can obtain better effect than classical algorithm.
Hui Li, Zhanzhan Zhang
doaj   +1 more source

Quantum Fourier transform for quantum sensing

, 2020
The Quantum Fourier Transformation ($QFT$) is a key building block for a whole wealth of quantum algorithms. Despite its proven efficiency, only a few proof-of-principle demonstrations have been reported. Here we utilize $QFT$ to enhance the performance of a quantum sensor.
Vorobyov, Vadim, Zaiser, Sebastian, Abt, Nikolas, Meinel, Jonas, Dasari, Durga, Neumann, Philipp, Wrachtrup, Jörg   +6 more
openaire   +2 more sources

Discrete quantum Fourier transform in coupled semiconductor double quantum dot molecules

, 2008
In this Letter, we present a physical scheme for implementing the discrete quantum Fourier transform in a coupled semiconductor double quantum dot system.
Burkard, Guo, Guo, Hanson, Hayashi, Hu, Hu, Johnson, Kotlyar, Loss, Merkulov, Ming Yang, Nielsen, Petta, Ping Dong, Schliemann, Scully, Stepanenko, Tame, Tanamoto, Taylor, Taylor, Taylor, Weinstein, Zhang, Zhuo-Liang Cao   +25 more
core   +1 more source

Quantum Edge Detection and Convolution Using Paired Transform-Based Image Representation

Information
Classical edge detection algorithms often struggle to process large, high-resolution image datasets efficiently. Quantum image processing offers a promising alternative, but current implementations face significant challenges, such as time-consuming data
Artyom Grigoryan, Alexis Gomez, Sos Agaian, Karen Panetta   +3 more
doaj   +1 more source

Quantum Fourier Transform over Symmetric Groups

ACM Communications in Computer Algebra, 2015
This paper improves the main result in our paper "Quantum Fourier Transform over Symmetric Groups, Proceedings of the International Symposium on Symbolic and Algebraic Computation (ISSAC), pp. 227--234, Northeastern University, Boston, USA (June 26-29, 2013)." In that paper, we presented an O(n4) quantum Fourier transform (QFT) algorithm over symmetric
Kawano, Yasuhito, Sekigawa, Hiroshi
openaire   +1 more source

An efficient high dimensional quantum Schur transform [PDF]

Quantum, 2019
The Schur transform is a unitary operator that block diagonalizes the action of the symmetric and unitary groups on an $n$ fold tensor product $V^{\otimes n}$ of a vector space $V$ of dimension $d$.
Hari Krovi
doaj   +1 more source

Multiqubit quantum phase gate using four-level superconducting quantum interference devices coupled to superconducting resonator

, 2012
In this paper, we propose a scheme to realize three-qubit quantum phase gate of one qubit simultaneously controlling two target qubits using four-level superconducting quantum interference devices (SQUIDs) coupled to a superconducting resonator.
Irfan, Muhammad, Qamar, Shahid, Waseem, Muhammad   +2 more
core   +1 more source