Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,274
This Month
1,272
Today
0
Research Volume
15,417 papers in 12 months (-6% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Fast quantum circuit cutting with randomized measurements
Angus Lowe, Matija Medvidovi'c, Anthony Joseph Hayes +4 more·Jul 29, 2022
We propose a new method to extend the size of a quantum computation beyond the number of physical qubits available on a single device. This is accomplished by randomly inserting measure-and-prepare channels to express the output state of a large circ...
Toward Highly Efficient Multimode Superconducting Quantum Memory
A. Matanin, K. Gerasimov, E. Moiseev +8 more·Jul 28, 2022
Microwave quantum memory promises advanced capabilities for noisy intermediate-scale superconducting quantum computers. Existing approaches to microwave quantum memory lack complete combination of high efficiency, long storage time, noiselessness and...
Random Quantum Circuits
M. Fisher, V. Khemani, A. Nahum +1 more·Jul 28, 2022
Quantum circuits—built from local unitary gates and local measurements—are a new playground for quantum many-body physics and a tractable setting to explore universal collective phenomena far from equilibrium. These models have shed light on longstan...
Performant coherent control: bridging the gap between high- and low-level operations on hardware
Daniel S. Lobser, Jay W. Van Der Wall, Joshua D. Goldberg·Jul 28, 2022
Scalable coherent control hardware for quantum information platforms is rapidly growing in priority as their number of available qubits continues to increase. As these systems scale, more calibration steps are needed, leading to challenges with syste...
Experimental Simulation of Larger Quantum Circuits with Fewer Superconducting Qubits.
C. Ying, Bin Cheng, You-Wei Zhao +14 more·Jul 28, 2022
Although near-term quantum computing devices are still limited by the quantity and quality of qubits in the so-called NISQ era, quantum computational advantage has been experimentally demonstrated. Moreover, hybrid architectures of quantum and classi...
Simulation of Interaction-Induced Chiral Topological Dynamics on a Digital Quantum Computer.
Jin Ming Koh, Tommy Tai, Ching Hua Lee·Jul 28, 2022
Chiral edge states are highly sought after as paradigmatic topological states relevant to both quantum information processing and dissipationless electron transport. Using superconducting transmon-based quantum computers, we demonstrate chiral topolo...
: A isualization pproah for Noie Awarenss in Quatum Computing
Shaolun Ruan, Yong Wang, Weiwen Jiang +2 more·Jul 28, 2022
Quantum computing has attracted considerable public attention due to its exponential speedup over classical computing. Despite its advantages, today's quantum computers intrinsically suffer from noise and are error-prone. To guarantee the high fideli...
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 ...
Quantum Many-Body Jarzynski Equality and Dissipative Noise on a Digital Quantum Computer
D. Hahn, M. Dupont, M. Schmitt +2 more·Jul 28, 2022
The quantum Jarzynski equality and the Crooks relation are fundamental laws connecting equilibrium processes with nonequilibrium fluctuations. They are promising tools to benchmark quantum devices and measure free energy differences. While they are w...
Matchgate Shadows for Fermionic Quantum Simulation
Kianna Wan, W. Huggins, Joonho Lee +1 more·Jul 27, 2022
“Classical shadows” are estimators of an unknown quantum state, constructed from suitably distributed random measurements on copies of that state (Huang et al. in Nat Phys 16:1050, 2020, https://doi.org/10.1038/s41567-020-0932-7). In this paper, we a...
Digital-Analog Co-Design of the Harrow-Hassidim-Lloyd Algorithm
Ana Martin, Rubén Ibarrondo, M. Sanz·Jul 27, 2022
The Harrow-Hassidim-Lloyd quantum algorithm was proposed to solve linear systems of equations $A\vec{x} = \vec{b}$ and it is the core of various applications. However, there is not an explicit quantum circuit for the subroutine which maps the inverse...
A Copositive Framework for Analysis of Hybrid Ising-Classical Algorithms
Robin Brown, D. E. B. Neira, D. Venturelli +1 more·Jul 27, 2022
Recent years have seen significant advances in quantum/quantum-inspired technologies capable of approximately searching for the ground state of Ising spin Hamiltonians. The promise of leveraging such technologies to accelerate the solution of difficu...
Realizing a class of stabilizer quantum error correction codes using a single ancilla and circular connectivity
A. V. Antipov, E. Kiktenko, A. Fedorov·Jul 27, 2022
We describe a class of"neighboring-blocks"stabilizer quantum error correction codes and demonstrate that such class of codes can be implemented in a resource-efficient manner using a single ancilla and circular near-neighbor qubit connectivity. We pr...
Do quantum circuit Born machines generalize?
Kaitlin Gili, Mohamed Hibat-Allah, M. Mauri +2 more·Jul 27, 2022
In recent proposals of quantum circuit models for generative tasks, the discussion about their performance has been limited to their ability to reproduce a known target distribution. For example, expressive model families such as quantum circuit Born...
Exploring light-cone distribution amplitudes from quantum computing
Tianyin Li, Xingyu Guo, W. K. Lai +6 more·Jul 27, 2022
Light-cone distribution amplitudes (LCDAs) are essential nonperturbative quantities for theoretical predictions of exclusive high-energy processes in quantum chromodynamics (QCD). We demonstrate the prospect of calculating LCDAs on a quantum computer...
Response to"Exponential challenges in unbiasing quantum Monte Carlo algorithms with quantum computers"
Joonho Lee, D. Reichman, R. Babbush +4 more·Jul 27, 2022
A recent preprint by Mazzola and Carleo numerically investigates exponential challenges that can arise for the QC-QMC algorithm introduced in our work,"Unbiasing fermionic quantum Monte Carlo with a quantum computer."As discussed in our original pape...
Quantum critical dynamics in a 5,000-qubit programmable spin glass
A. King, Jack Raymond, T. Lanting +24 more·Jul 27, 2022
Experiments on disordered alloys^ 1 – 3 suggest that spin glasses can be brought into low-energy states faster by annealing quantum fluctuations than by conventional thermal annealing. Owing to the importance of spin glasses as a paradigmatic computa...
Error-analysis for the Sorkin and Peres tests performed on a quantum computer
Simanraj Sadana, L. Maccone, U. Sinha·Jul 27, 2022
We use quantum computers to test the foundations of quantum mechanics through quantum algorithms that implement some of the experimental tests as the basis of the theory's postulates. These algorithms can be used as a test of the physical theory unde...
Mitigation of Quasiparticle Loss in Superconducting Qubits by Phonon Scattering
A. Bargerbos, L. J. Splitthoff, M. Pita-Vidal +6 more·Jul 26, 2022
Quantum error correction will be an essential ingredient in realizing fault-tolerant quantum computing. However, most correction schemes rely on the assumption that errors are sufficiently uncorrelated in space and time. In superconducting qubits thi...
Quantifying nonstabilizerness of matrix product states
T. Haug, L. Piroli·Jul 26, 2022
Nonstabilizerness, also known as magic, quantifies the number of non-Clifford operations needed in order to prepare a quantum state. As typical measures either involve minimization procedures or a computational cost exponential in the number of qubit...