21 papers · ranked by Valyu relevance
Todd A. Brun
Quantum error correction is a set of methods to protect quantum information—that is, quantum states—from unwanted environmental interactions (decoherence) and other forms of noise. The information is stored in a quantum error-correcting code, which is a subspace in a larger Hilbert space. This code is designed so that…
Sergey Bravyi, Andrew W. Cross, Jay M. Gambetta, Dmitri Maslov + 2 more
'Patrick Rall' 'Theodore J. Yoder'] The accumulation of physical errors1-3 prevents the execution of large-scale algorithms in current quantum computers. Quantum error correction4 promises a solution by encoding k logical qubits onto a larger number n of physical qubits, such that the physical errors are suppressed…
Marios H. Michael, Matti Silveri, Richard Brierley, Victor V. Albert + 3 more
'J. Salmilehto' 'Liang Jiang' 'S. M. Girvin'] We construct a new class of quantum error-correcting codes for a bosonic mode which are advantageous for applications in quantum memories, communication, and scalable computation. These 'binomial quantum codes' are formed from a finite superposition of Fock states weighted…
F. Reiter, A. S. Sørensen, P. Zoller, C. A. Muschik
Quantum-enhanced measurements hold the promise to improve high-precision sensing ranging from the definition of time standards to the determination of fundamental constants of nature. However, quantum sensors lose their sensitivity in the presence of noise. To protect them, the use of quantum error-correcting codes has…
Othman O. Khalifa, Nur Amirah bt Sharif, Rashid A Saeed, S. Abdel-Khalek + 2 more
'S. Abdel-Khalek' 'Abdulaziz N. Alharbi' 'Ali A. Alkathiri'] Quantum computing is a computer development technology that uses quantum mechanics to perform the operations of data and information. It is an advanced technology, yet the quantum channel is used to transmit the quantum information which is sensitive to the…
Avimita Chatterjee, Koustubh Phalak, Swaroop Ghosh
—In the current Noisy Intermediate Scale Quantum (NISQ) era of quantum computing, qubit technologies are prone to imperfections, giving rise to various errors such as gate errors, decoherence/dephasing, measurement errors, leakage, and crosstalk. These errors present challenges in achieving errorfree computation within…
Shuhong Hao, Xiaolong Su, Caixing Tian, Changde Xie + 1 more
Quantum error correction protects the quantum state against noise and decoherence in quantum communication and quantum computation, which enables one to perform fault-torrent quantum information processing. We experimentally demonstrate a quantum error correction scheme with a five-wave-packet code against a single…
Authors not listed
This work provides a rigorous theoretical investigation of selective error correction strategies for variational quantum algorithms, with focus on understanding the interplay between error suppression, circuit trainability, and computational resource requirements. We develop a mathematical framework that characterizes…
Dongxiao Quan, Chensong Liu, Xiaojie Lv, Changxing Pei + 1 more
Quantum error correction (QEC) is an effective way to overcome quantum noise and de-coherence, meanwhile the fault tolerance of the encoding circuit, syndrome measurement circuit, and logical gate realization circuit must be ensured so as to achieve reliable quantum computing. Steane code is one of the most famous…
Muhammad Annas Khan, Salman Ghafoor, Syed Mohammad Hassan Zaidi, Haibat Khan + 1 more
'Haibat Khan' 'Arsalan Ahmad'] In the aftermath of unparalleled disruptive technologies, the quantum realm has become a fundamental field of research due to unrivaled computational power and super-secure communication. In addition to conventional networks, a new word in the quantum domain is quantum network. The…
Jihao Fan, Min-Hsiu Hsieh, Hanwu Chen, He Chen + 1 more
—In practical communication and computation systems, errors occur predominantly in adjacent positions rather than in a random manner. In this paper, we develop a stabilizer formalism for quantum burst error correction codes (QBECC) to combat such error patterns in the quantum regime. Our contributions are as follows.…
Shuhong Hao, Meihong Wang, Dong Wang, Xiaolong Su
Topological error correction provides an effective method to correct errors in quantum computation. It allows quantum computation to be implemented with higher error threshold and high tolerating loss rates. We present a topological a error correction scheme with continuous variables based on an eight-partite Gaussian…
Jesús García López de Lacalle, Luis Miguel Pozo Coronado, André Luiz Fonseca de Oliveira, Rafael Mart ́ın-Cuevas
'André Luiz Fonseca de Oliveira' 'Rafael Mart ́ın-Cuevas'] In this work we prove that the 5 −qubit quantum error correcting code [1, 2] does not fix qubit independent errors (Theorem 6), even assuming that the correction circuit does not introduce new errors. We say that a quantum code does not fix a quantum computing…
Osamu Hirota, Rosario Lo Franco
In recent years, remarkable progress has been achieved in the development of quantum computers. For further development, it is important to clarify properties of errors by quantum noise and environment noise. However, when the system scale of quantum processors is expanded, it has been pointed out that a new type of…
Authors not listed
This paper develops a comprehensive theoretical framework for designing quantum memory systems with enhanced resilience to thermal decoherence through engineered lattice geometries and protective structures. We formulate a unified mathematical description connecting material properties, geometric configurations, and…
Mårten Skogh, Phalgun Lolur, Werner Dobrautz, Christopher Warren + 5 more
There is currently no combination of quantum hardware and algorithms that can provide an advantage over conventional calculations of molecules or materials. However, if or when such a point is reached, new strategies will be needed to verify predictions made using quantum devices. We propose that the electron density…
Authors not listed
One of the main applications for which quantum computers are hoped to find utility is in simulating ground state energies and other observables of molecular chemical systems. The recently proposed sample-based diagonalization method is a readily implementable method for this task on current-day hardware using short…
Jing-Kai Fang, Yue-Feng Lin, Jun-Han Huang, Yibo Chen + 9 more
Computational biology holds immense promise as a domain that can leverage quantum advantages due to its involvement in a wide range of challenging computational tasks. Researchers have recently explored the applications of quantum computing in genome assembly implementation. However, the issue of repetitive sequences…
Namasi G Sankar, Georgios Miliotis, Simon Caton
Genome assembly is important in infectious disease surveillance, antimicrobial resistance monitoring, and cancer genomics. The task of reconstructing full genomic sequences from fragmented reads, can be framed as a large scale combinatorial optimisation problem. Recent advances in quantum computing have introduced new…
Montgomery Gray, Paige Bowling, John Herbert
A widespread belief persists that the Boys-Bernardi function counterpoise (CP) procedure "overcorrects" supramolecular interaction energies for the effects of basis-set superposition error. To the extent that this is true for correlated wave function methods, it is usually an artifact of low-quality basis sets, but the…
Meiying Cui, Yixin Zhang
DNA has become a promising candidate as future data storage medium, which makes DNA steganography indispensable in DNA data security. While PCR primers are conventional secret keys in DNA steganography, the information can be read once the primers are intercepted. New steganography approach is needed to make the…