Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Towards solving the Fermi-Hubbard model via tailored quantum annealers
Ryan Levy, Zoe Gonzalez Izquierdo, Zhihui Wang +8 more·Jul 28, 2022
The Fermi-Hubbard model (FHM) on a two dimensional square lattice has long been an important testbed and target for simulating fermionic Hamiltonians on quantum hardware. We present an alternative for quantum simulation of FHMs based on an adiabatic ...
Maximizing Entanglement Routing Rate in Quantum Networks: Approximation Algorithms
Dung H. P. Nguyen, Ethan Hunt, Dillon J. Horton +2 more·Jul 19, 2022
There will be a fast-paced shift from conventional network systems to novel quantum networks that are supported by the quantum entanglement and teleportation, key technologies of the quantum era, to enable secured data transmissions in the next-gener...
Parity-encoding-based quantum computing with Bayesian error tracking
Seok-Hyung Lee, S. Omkar, Yong-Siah Teo +1 more·Jul 14, 2022
Measurement-based quantum computing (MBQC) in linear optical systems is promising for near-future quantum computing architecture. However, the nondeterministic nature of entangling operations and photon losses hinder the large-scale generation of gra...
An adiabatic oracle for Grover's algorithm
B. Yan, N. Sinitsyn·Jul 12, 2022
Grover’s search algorithm was originally proposed for circuit-based quantum computers. A crucial part of it is to query an oracle — a black-box unitary operation. Generation of this oracle is formally beyond the original algorithm design. Here, we pr...
High-throughput decoder of quasi-cyclic LDPC codes with limited precision for continuous-variable quantum key distribution systems
Chuang Zhou, Yang Li, Li Ma +7 more·Jul 5, 2022
— More than Mbps secret key rate was demonstrated for continuous-variable quantum key distribution (CV-QKD) systems, but real-time postprocessing is not allowed, which is restricted by the throughput of the error correction decoding in postprocessing...
Carleman linearization approach for chemical kinetics integration toward quantum computation
Takaki Akiba, Y. Morii, K. Maruta·Jul 5, 2022
The Harrow, Hassidim, Lloyd (HHL) algorithm, known as the pioneering algorithm for solving linear equations in quantum computers, is expected to accelerate solving large-scale linear ordinary differential equations (ODEs). To efficiently combine clas...
Ion trap long-range XY model for quantum state transfer and optimal spatial search
D. Lewis, L. Banchi, Yi Hong Teoh +2 more·Jun 28, 2022
Linear ion trap chains are a promising platform for quantum computation and simulation. The XY model with long-range interactions can be implemented with a single side-band Mølmer–Sørensen scheme, giving interactions that decay as 1/rα , where α para...
Advancing hybrid quantum–classical computation with real-time execution
Thomas Lubinski, Cassandra Granade, Amos G. Anderson +4 more·Jun 26, 2022
The use of mid-circuit measurement and qubit reset within quantum programs has been introduced recently and several applications demonstrated that perform conditional branching based on these measurements. In this work, we go a step further and descr...
Deterministic generation of multidimensional photonic cluster states with a single quantum emitter
V. Ferreira, Gihwan Kim, A. Butler +2 more·Jun 21, 2022
Entanglement is a key resource in quantum computing and other prospective technologies. Multidimensional photonic graph states, such as cluster states, have a special entanglement structure that makes them a valuable resource for quantum metrology, s...
Quantum-enhanced selection operators for evolutionary algorithms
David Von Dollen, S. Yarkoni, Daniel Weimer +2 more·Jun 21, 2022
Genetic algorithms have unique properties which are useful when applied to black box optimization. Using selection, crossover, and mutation operators, candidate solutions may be obtained without the need to calculate a gradient. In this work, we stud...
Single-step implementation of a hybrid controlled-not gate with one superconducting qubit simultaneously controlling multiple target cat-state qubits
Qi-Ping Su, Yu Zhang, Chuiping Yang·Jun 21, 2022
Hybrid quantum gates have recently drawn considerable attention. They play significant roles in connecting quantum information processors with qubits of different encoding and have important applications in the transmission of quantum states between ...
Cooperative quantum information erasure
L. Buffoni, M. Campisi·Jun 21, 2022
We demonstrate an information erasure protocol that resets N qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost kTln2), time duration (∼μs) and erasure success rate (∼99,9...
Quantum Circuit Optimization and Transpilation via Parameterized Circuit Instantiation
Ed Younis, Costin Iancu·Jun 16, 2022
Parameterized circuit instantiation is a common technique encountered in the generation of circuits for a large class of hybrid quantum-classical algorithms. Despite being supported by popular quantum compilation infrastructures such as IBM Qiskit an...
Comparative analysis of error mitigation techniques for variational quantum eigensolver implementations on IBM quantum system
Shaobo Zhang, C. Hill, M. Usman·Jun 16, 2022
Quantum computers are anticipated to transcend classical supercomputers for computationally intensive tasks by exploiting the principles of quantum mechanics. However, the capabilities of the current generation of quantum devices are limited due to n...
Performance analysis of coreset selection for quantum implementation of K-Means clustering algorithm
Fanzhe Qu, S. Erfani, M. Usman·Jun 16, 2022
Quantum computing is anticipated to offer immense computational capabilities which could provide efficient solutions to many data science problems. However, the current generation of quantum devices are small and noisy, which makes it difficult to pr...
A New Approach to Quantum Computing Multi-Qubit Generation and Development of Quantum Computing Platform with Magnetic Resonance Imaging Techniques
Z. Cho, Y. Son, H. Jeong +4 more·Jun 13, 2022
Increased interest in quantum computing has resulted in various proposals for generating quantum bits or qubits. Superconducting qubits of the Josephson junction are the most widely accepted and currently used, while ion-trap and similar molecule-bas...
Synthesis of and compilation with time-optimal multi-qubit gates
Pascal Bassler, Matthias Zipper, C. Cedzich +4 more·Jun 13, 2022
We develop a method to synthesize a class of entangling multi-qubit gates for a quantum computing platform with fixed Ising-type interaction with all-to-all connectivity. The only requirement on the flexibility of the interaction is that it can be sw...
Emergence of Spinmerism for Molecular Spin-Qubits Generation.
Pablo Roseiro, Louis Petit, Vincent Robert +1 more·Jun 8, 2022
Molecular platforms are regarded as promising candidates in the generation of units of information for quantum computing. Herein, a strategy combining spin-crossover metal ions and radical ligands is proposed from a model Hamiltonian first restricted...
Multi-qubit doilies: enumeration for all ranks and classification for ranks four and five
Axel Muller, M. Saniga, Alain Giorgetti +2 more·Jun 7, 2022
For $N \geq 2$, an $N$-qubit doily is a doily living in the $N$-qubit symplectic polar space. These doilies are related to operator-based proofs of quantum contextuality. Following and extending the strategy of Saniga et al. (Mathematics 9 (2021) 227...
Automatic oracle generation in Microsoft’s Quantum Development Kit using QIR and LLVM passes
Mathias Soeken, Mariia Mykhailova·Jun 6, 2022
Automatic oracle generation techniques can find optimized quantum circuits for classical components in quantum algorithms. However, most implementations of oracle generation techniques require that the classical component is expressed in terms of a c...