16 papers · ranked by Valyu relevance
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…
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…
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…
Panagiotis Botsinis, Zunaira Babar, Dimitrios Alanis, Daryus Chandra + 3 more
'Hung Nguyen' 'Soon Xin Ng' 'Lajos Hanzo'] When quantum computing becomes a wide-spread commercial reality, Quantum Search Algorithms (QSA) and especially Grover’s QSA will inevitably be one of their main applications, constituting their cornerstone. Most of the literature assumes that the quantum circuits are free…
Umesh Uttamrao Shinde, Ravikumar Bandaru
The error correction model’s main purpose in heavy hexagonal quantum codes is to improve their reliability for quantum computing applications. Existing challenges include finding the optimal decoder for quantum error correction in heavy hexagonal codes. This research propels the frontier of quantum error correction…
Fang Zhang, Jianxin Chen, Giuliano Benenti
Error correction is an essential part of the theory of quantum computation. However, new quantum computation students may find the theories of error correction and fault tolerance daunting, or they may be stuck with theoretical/outdated schemes (such as the one in the original proof of the threshold theorem by Aharonov…
Benjamin J. Brown, Naomi H. Nickerson, Dan E. Browne
The constituent parts of a quantum computer are inherently vulnerable to errors. To this end, we have developed quantum error-correcting codes to protect quantum information from noise. However, discovering codes that are capable of a universal set of computational operations with the minimal cost in quantum resources…
Selena J. Lockyer, Alessandro Chiesa, Grigore A. Timco, Eric J. L. McInnes + 4 more
'Eric J. L. McInnes' 'Tom S. Bennett' 'Inigo J. Vitorica-Yrezebal' 'Stefano Carretta' 'Richard E. P. Winpenny'] The implementation of a quantum computer requires both to protect information from environmental noise and to implement quantum operations efficiently. Achieving this by a fully fault-tolerant platform, in…
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…
Zitong Diao, Jie Tang, Zhaoqi Lei, Huicun Yu + 6 more
Quantum dense coding could be used to transmit two classical bits with one qubit when a maximally entangled state is shared. In realistic channels, entanglement degradation reduces the channel capacity, while bit-flip noise increases decoding errors. To address these issues, we propose a novel probabilistic controlled…
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…
Rajni Bala, Sooryansh Asthana, V. Ravishankar
Near-term quantum communication protocols suffer inevitably from channel noises, whose alleviation has been mostly attempted with resources such as multiparty entanglement or sophisticated experimental techniques. Generation of multiparty higher dimensional entanglement is not easy. This calls for exploring realistic…
Kai Sun, Ze-Yan Hao, Yan Wang, Jia-Kun Li + 5 more
'Yong-Jian Han' 'Chuan-Feng Li' 'Guang-Can Guo'] A major challenge in practical quantum computation is the ineludible errors caused by the interaction of quantum systems with their environment. Fault-tolerant schemes, in which logical qubits are encoded by several physical qubits, enable to the output of a higher…
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…
Syed Emad Uddin Shubha, Md. Saifur Rahman, M.R.C. Mahdy
Quantum entanglement is a unique criterion of the quantum realm and an essential tool to secure quantum communication. Ensuring high-fidelity entanglement has always been a challenging task owing to interaction with the hostile channel environment created due to quantum noise and decoherence. Though several methods…