20 papers · ranked by Valyu relevance
Alvin Gonzales, Ruslan Shaydulin, Zain H. Saleem, Martin Suchara
We describe and analyze an error mitigation technique that uses multiple pairs of parity checks to detect the presence of errors. Each pair of checks uses one ancilla qubit to detect a component of the error operator and represents one layer of the technique. We build on the results on extended flag gadgets and put it…
Yihui Quek, Daniel Stilck França, Sumeet Khatri, Johannes Jakob Meyer + 1 more
Quantum error mitigation has been proposed as a means to combat unwanted and unavoidable errors in near-term quantum computing without the heavy resource overheads required by fault-tolerant schemes. Recently, error mitigation has been successfully applied to reduce noise in near-term applications. In this work…
Zhenyu Cai, Ryan Babbush, Simon C. Benjamin, Suguru Endo + 4 more
'William J. Huggins' 'Ying Li' 'Jarrod R. McClean' 'Thomas E. O’Brien'] For quantum computers to successfully solve real-world problems, it is necessary to tackle the challenge of noise: the errors which occur in elementary physical components due to unwanted or imperfect interactions. The theory of quantum fault…
Armands Strikis, Dayue Qin, Yanzhu Chen, Simon C. Benjamin + 1 more
If NISQ-era quantum computers are to perform useful tasks, they will need to employ powerful error mitigation techniques. Quasi-probability methods can permit perfect error compensation at the cost of additional circuit executions, provided that the nature of the error model is fully understood and sufficiently local…
Vincent M. Russo, Andrea Mari, Nathan Shammah, Ryan LaRose + 1 more
'William J. Zeng'] We apply quantum error mitigation techniques to a variety of benchmark problems and quantum computers to evaluate the performance of quantum error mitigation in practice. To do so, we define an empirically motivated, resource-normalized metric of the improvement of error mitigation which we call the…
Ali Shaib, Mohamad Hussein Naim, Mohammed E. Fouda, Rouwaida Kanj + 1 more
'Fadi Kurdahi'] Quantum computers have enabled solving problems beyond the current machines’ capabilities. However, this requires handling noise arising from unwanted interactions in these systems. Several protocols have been proposed to address efficient and accurate quantum noise profiling and mitigation. In this…
Alistair W. R. Smith, Kiran E. Khosla, Chris N. Self, M. S. Kim
We present a scheme to characterize and mitigate readout errors on multi-qubit devices more efficiently using random bit-flips.
Manpreet Singh Jattana, Fengping Jin, Hans De Raedt, Kristel Michielsen
'Kristel Michielsen'] A general method to mitigate the effect of errors in quantum circuits is outlined. The method is developed in sight of characteristics that an ideal method should possess and to ameliorate an existing method which only mitigates state preparation and measurement errors. The method is tested on…
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…
Lena Funcke, Tobias Hartung, Karl Jansen, Stefan Kühn + 2 more
'Paolo Stornati' 'Xiaoyang Wang'] We develop a classical bit-flip correction method to mitigate measurement errors on quantum computers. This method can be applied to any operator, any number of qubits, and any realistic bit-flip probability. We first demonstrate the successful performance of this method by correcting…
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…
Jakob Günther, Francesco Tacchino, James R. Wootton, Ivano Tavernelli + 1 more
'Ivano Tavernelli' 'Panagiotis Kl. Barkoutsos'] Near term quantum computers suffer from the presence of different noise sources. In order to mitigate for this effect and acquire results with significantly better accuracy, there is the urge of designing efficient error correction or error mitigation schemes. The cost of…
Ze-Chuan Liu, Chong-Yuan Xu, Yong Xu
Quantum low-density parity-check (qLDPC) codes are promising candidates for fault-tolerant quantum computation due to their high encoding rates and distances. However, implementing logical operations using qLDPC codes presents significant challenges. Previous research has demonstrated that self-dual qLDPC codes…
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
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…
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We present a comprehensive theoretical analysis of quantum subspace diagonalization methods for molecular electronic structure calculations, establishing rigorous complexity bounds and convergence guarantees. Building on recent developments in adaptive quantum algorithms for chemical systems, we formulate a general…
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…
Basel Mansour, Daniel Kei Takahashi, George Rafaelyan
Accurate prediction of Absorption, Distribution, Metabolism, Excretion, and Toxicity (ADMET) properties is a central challenge in early-stage drug discovery, where experimental determination remains costly and time-consuming. In this work, we propose a quantum-inspired preprocessing framework in which statistical…
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…
Patrícia Verdugo Pascoal, Deborah Bambil, Rayane N. Lima, Marco Antônio de Oliveira + 3 more
Quantum biology is an emergent field that investigates quantum-mechanical phenomena, such as superposition, tunneling, and entanglement, in the context of data manipulation from living systems. The exploration and engineering of nucleotide sequences rely on quantum mechanical principles, particularly the use of qubit…