Papers
Live trends in quantum computing research, updated daily from arXiv.
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30,392
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14,829 papers in 12 months (-23% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Gravitational Wave-Induced Superradiance in Ordered Atomic Arrays
Navdeep Arya, Magdalena Zych·Aug 22, 2024
The effects of spacetime geometry on quantum systems are typically very small. Here, we demonstrate a coherent many-body mechanism that can enhance these effects. We show that, in an ordered array, a gravitational wave induces long-range all-to-all d...
A framework for extracting the rates of photophysical processes from biexponentially decaying photon emission data
Jill M. Cleveland, Tory A. Welsch, Eric Y. Chen +3 more·Aug 22, 2024
There is strong interest in designing and realizing optically-active semiconductor nanostructures of greater complexity for applications in fields ranging from biomedical engineering to quantum computing. While these increasingly complex nanostructur...
Technology and Performance Benchmarks of IQM's 20-Qubit Quantum Computer
Leonid Abdurakhimov, János Ádám, Hasnain Ahmad +111 more·Aug 22, 2024
Quantum computing has tremendous potential to overcome some of the fundamental limitations present in classical information processing. Yet, today's technological limitations in the quality and scaling prevent exploiting its full potential. Quantum c...
Efficient learning for linear properties of bounded-gate quantum circuits
Yuxuan Du, Min-Hsiu Hsieh, Dacheng Tao·Aug 22, 2024
The vast and complicated many-qubit state space forbids us to comprehensively capture the dynamics of modern quantum computers via classical simulations or quantum tomography. Recent progress in quantum learning theory prompts a crucial question: can...
A General Framework for Gradient-Based Optimization of Superconducting Quantum Circuits using Qubit Discovery as a Case Study
Taha Rajabzadeh, Alex Boulton-McKeehan, Sam Bonkowsky +2 more·Aug 22, 2024
Engineering the Hamiltonian of a quantum system is fundamental to the design of quantum systems. Automating Hamiltonian design through gradient-based optimization can dramatically accelerate this process. However, computing the gradients of eigenvalu...
A Practical Introduction to Benchmarking and Characterization of Quantum Computers
A. Hashim, Long B. Nguyen, Noah Goss +16 more·Aug 22, 2024
Rapid progress in quantum technology has transformed quantum computing and quantum information science from theoretical possibilities into tangible engineering challenges. Breakthroughs in quantum algorithms, quantum simulations, and quantum error co...
Quantum Circuit Optimization using Differentiable Programming of Tensor Network States
David Rogerson, Ananda Roy·Aug 22, 2024
Efficient quantum circuit optimization schemes are central to quantum simulation of strongly interacting quantum many body systems. Here, we present an optimization algorithm which combines machine learning techniques and tensor network methods. The ...
One-to-One Correspondence between Deterministic Port-Based Teleportation and Unitary Estimation
Satoshi Yoshida, Yuki Koizumi, Michał Studziński +2 more·Aug 21, 2024
Port-based teleportation is a variant of quantum teleportation, where the receiver can choose one of the ports in his part of the entangled state shared with the sender, but cannot apply other recovery operations. We show that the optimal fidelity of...
Faster Quantum Simulation Of Markovian Open Quantum Systems Via Randomisation
I. J. David, I. Sinayskiy, F. Petruccione·Aug 21, 2024
When simulating the dynamics of open quantum systems with quantum computers, it is essential to accurately approximate the system's behaviour while preserving the physicality of its evolution. Traditionally, for Markovian open quantum systems, this h...
Designing generalized elegant Bell inequalities in higher dimensions from a Tsirelson bound
Kwangil Bae, Junghee Ryu, Ilkwon Sohn +1 more·Aug 21, 2024
Elegant Bell inequality is well known for its distinctive property, being maximally violated by maximal entanglement, mutually unbiased bases, and symmetric informationally complete positive operator-valued measure elements. Despite its significance ...
In situ mixer calibration for superconducting quantum circuits
Nan Wu, Jingjie Lin, Changrong Xie +17 more·Aug 21, 2024
Mixers play a crucial role in superconducting quantum computing, primarily by facilitating frequency conversion of signals to enable precise control and readout of quantum states. However, imperfections, particularly local oscillator leakage and unwa...
A Quantum Approximate Optimization Algorithm-Based Decoder Architecture for NextG Wireless Channel Codes
Srikar Kasi, James Sud, Kyle Jamieson +1 more·Aug 21, 2024
Forward Error Correction (FEC) provides reliable data flow in wireless networks despite the presence of noise and interference. However, its processing demands significant fraction of a wireless network's resources, due to its computationally-expensi...
HiMA: Hierarchical Quantum Microarchitecture for Qubit-Scaling and Quantum Process-Level Parallelism
Qi Zhou, Zi-Hao Mei, Han-Qing Shi +10 more·Aug 21, 2024
Quantum computing holds immense potential for addressing a myriad of intricate challenges, which is significantly amplified when scaled to thousands of qubits. However, a major challenge lies in developing an efficient and scalable quantum control sy...
Quantum error correction for unresolvable spin ensemble
Harsh Sharma, H. Dhar, Hoi-Kwan Lau·Aug 21, 2024
Spin ensembles are promising quantum technological platforms, but their utility relies on the ability to perform quantum error correction (QEC) for the specific decoherence in these systems. Typical QEC for ensembles requires addressing individually ...
Non-Clifford diagonalization for measurement shot reduction in quantum expectation value estimation
Nicolas Sawaya, Daan Camps, N. Tubman +2 more·Aug 21, 2024
Estimating expectation values on near-term quantum computers often requires a prohibitively large number of measurements. One widely-used strategy to mitigate this problem has been to partition an operator's Pauli terms into sets of mutually commutin...
Simulators for Quantum Network Modelling: A Comprehensive Review
Oceane Bel, M. Kiran·Aug 21, 2024
Quantum network research, is exploring new networking protocols, physics-based hardware and novel experiments to demonstrate how quantum distribution will work over large distances. Current work explores much of these concepts in simulations, that ar...
M2CS: A microwave measurement and control system for large-scale superconducting quantum processors
J. ZHANG 张, Xuandong 炫东 Sun 孙, Zechen 泽臣 Guo 郭 +17 more·Aug 21, 2024
As superconducting quantum computing continues to advance at an unprecedented pace, there is a compelling demand for the innovation of specialized electronic instruments that act as crucial conduits between quantum processors and host computers. Here...
Automated Synthesis of Fault-Tolerant State Preparation Circuits for Quantum Error Correction Codes
Tom Peham, Ludwig Schmid, Lucas Berent +2 more·Aug 21, 2024
A central ingredient in fault-tolerant quantum algorithms is the initialization of a logical state for a given quantum error-correcting code from a set of noisy qubits. A scheme that has demonstrated promising results for small code instances that ar...
Capturing anharmonic effects in single vibronic level fluorescence spectra using local harmonic Hagedorn wavepacket dynamics
Zhan Tong Zhang, M'at'e Visegr'adi, Jivr'i J. L. Van'ivcek·Aug 21, 2024
Hagedorn wavepacket dynamics yields exact single vibronic level (SVL) fluorescence spectra in global harmonic models. To partially describe the effects of anharmonicity, important in the spectra of real molecules, we describe a combination of the Hag...
Quantum Property Preservation
Kumar Saurav, Daniel A. Lidar·Aug 21, 2024
Quantum property preservation (QPP) is the problem of maintaining a target property of a quantum system for as long as possible. This problem arises naturally in the context of open quantum systems subject to decoherence. Here, we develop a general t...