Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Large‐Scale On‐Chip Integration of Gate‐Voltage Addressable Hybrid Superconductor–Semiconductor Quantum Wells Field Effect Nano‐Switch Arrays
K. Delfanazari, Jiahui Li, P. Ma +10 more·Jul 10, 2023
Stable, reproducible, scalable, addressable, and controllable hybrid superconductor–semiconductor (S–Sm) junctions and switches are key circuit elements and building blocks of gate‐based quantum processors. The electrostatic field effect produced by ...
Explainable quantum regression algorithm with encoded data structure
C.C.-Joseph Wang, F. Perkkola, I. Salmenperá +3 more·Jul 6, 2023
Hybrid variational quantum algorithms (VQAs) are promising for solving practical problems such as combinatorial optimization, quantum chemistry simulation, quantum machine learning, and quantum error correction on noisy quantum computers. However, wi...
A Hybrid Quantum-Classical Generative Adversarial Network for Near-Term Quantum Processors
Albha O’Dwyer Boyle, R. Nikandish·Jul 6, 2023
In this article, we present a hybrid quantum-classical generative adversarial network (GAN) for near-term quantum processors. The hybrid GAN comprises a variational generator and a discriminator quantum neural network, which are trained using a class...
Measurement-induced phase transitions in the toric code
Amir-Reza Negari, S. Sahu, T. Hsieh·Jul 5, 2023
We show how distinct phases of matter can be generated by performing random single-qubit measurements on a subsystem of toric code. Using a parton construction, such measurements map to random Gaussian tensor networks, and in particular, random Pauli...
Accelerated variational quantum eigensolver with joint Bell measurement
Chengfeng Cao, Hiroshi Yano, Yuya O. Nakagawa·Jul 3, 2023
The variational quantum eigensolver (VQE) stands as a prominent quantum-classical hybrid algorithm for near-term quantum computers to obtain the ground states of molecular Hamiltonians in quantum chemistry. However, due to the non-commutativity of th...
Greedy gradient-free adaptive variational quantum algorithms on a noisy intermediate scale quantum computer
C'esar Feniou, M. Hassan, Baptiste Claudon +4 more·Jun 29, 2023
Hybrid quantum-classical adaptive Variational Quantum Eigensolvers (VQE) hold the potential to outperform classical computing for simulating many-body quantum systems. However, practical implementations on current quantum processing units (QPUs) are ...
Hybrid noise protection of logical qubits for universal quantum computation
Zhao-Ming Wang, Feng-Hua Ren, M. Byrd +1 more·Jun 27, 2023
Quantum computers now show the promise of surpassing any possible classical machine. However, errors limit this ability and current machines do not have the ability to implement error correcting codes due to the limited number of qubits and limited c...
Fighting Noise with Noise: A Stochastic Projective Quantum Eigensolver
Maria-Andreea Filip·Jun 26, 2023
In the current noisy intermediate scale quantum era of quantum computation, available hardware is severely limited by both qubit count and noise levels, precluding the application of many current hybrid quantum-classical algorithms to nontrivial quan...
Stabilization of symmetry-protected long-range entanglement in stochastic quantum circuits
Iosifina Angelidi, M. Szyniszewski, A. Pal·Jun 22, 2023
Long-range entangled states are vital for quantum information processing and quantum metrology. Preparing such states by combining measurements with unitary gates opened new possibilities for efficient protocols with finite-depth quantum circuits. Th...
A Practical Overview of Quantum Computing: Is Exascale Possible?
J. Davenport, Jessica R. Jones, M. Thomason·Jun 21, 2023
Despite numerous advances in the field and a seemingly ever-increasing amount of investment, we are still some years away from seeing a production quantum computer in action. However, it is possible to make some educated guesses about the operational...
Hunting for Majoranas
A. Yazdani, F. von Oppen, B. Halperin +1 more·Jun 21, 2023
Over the past decade, there have been considerable efforts to observe non-abelian quasiparticles in novel quantum materials and devices. These efforts are motivated by the goals of demonstrating quantum statistics of quasiparticles beyond those of fe...
Formation energies of silicon self-interstitials using periodic coupled cluster theory
Faruk Salihbegovi'c, A. Gallo, Andreas Grüneis·Jun 20, 2023
We present a study of the self-interstitial point defect formation energies in silicon using a range of quantum chemical theories including the coupled cluster (CC) method within a periodic supercell approach. We study the formation energies of the X...
Tunable quantum emitters on large-scale foundry silicon photonics
Hugo Larocque, M. A. Buyukkaya, C. Errando-Herranz +11 more·Jun 10, 2023
Controlling large-scale many-body quantum systems at the level of single photons and single atomic systems is a central goal in quantum information science and technology. Intensive research and development has propelled foundry-based silicon-on-insu...
Dangling Bonds as Possible Contributors to Charge Noise in Silicon and Silicon-Germanium Quantum Dot Qubits.
J. Varley, K. G. Ray, V. Lordi·Jun 9, 2023
Spin qubits based on Si and Si1-xGex quantum dot architectures exhibit among the best coherence times of competing quantum computing technologies, yet they still suffer from charge noise that limit their qubit gate fidelities. Identifying the origins...
Quantum optimization algorithms for CT image segmentation from X-ray data
Kyungtaek Jun, Hyunju Lee·Jun 8, 2023
Computed tomography (CT) is an important imaging technique used in medical analysis of the internal structure of the human body. Previously, image segmentation methods were required after acquiring reconstructed CT images to obtain segmented CT image...
Hybrid Logical-Physical Qubit Interaction as a Post Selection Oracle
Nadav Carmel, N. Katz·Jun 8, 2023
We demonstrate a property of the quantum 5-qubit stabilizer code that enables the interaction between qubits of different logical layers, and conduct a full density-matrix simulation of an interaction between a logical and a physical qubit. We use th...
Formulation of the Electric Vehicle Charging and Routing Problem for a Hybrid Quantum-Classical Search Space Reduction Heuristic
Mikel Garcia de Andoin, Alberto Bottarelli, Sebastian Schmitt +3 more·Jun 7, 2023
Combinatorial optimization problems have attracted much interest in the quantum computing community in the recent years as a potential testbed to showcase quantum advantage. In this paper, we show how to exploit multilevel carriers of quantum informa...
Compiling Quantum Circuits for Dynamically Field-Programmable Neutral Atoms Array Processors
Daniel Bochen Tan, D. Bluvstein, M. Lukin +1 more·Jun 6, 2023
Dynamically field-programmable qubit arrays (DPQA) have recently emerged as a promising platform for quantum information processing. In DPQA, atomic qubits are selectively loaded into arrays of optical traps that can be reconfigured during the comput...
Systems Architecture for Quantum Random Access Memory
Shifan Xu, Connor T. Hann, Ben Foxman +2 more·Jun 5, 2023
Operating on the principles of quantum mechanics, quantum algorithms hold the promise for solving problems that are beyond the reach of the best-available classical algorithms. An integral part of realizing such speedup is the implementation of quant...
Quafu-RL: The Cloud Quantum Computers based Quantum Reinforcement Learning
Baqis Quafu Group·May 29, 2023
With the rapid advent of quantum computing, hybrid quantum-classical machine learning has shown promising computational advantages in many key fields. Quantum reinforcement learning, as one of the most challenging tasks, has recently demonstrated its...