Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,250
This Month
22
Today
0
Research Volume
13,406 papers in 12 months (-22% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Microwave‐to‐Optics Conversion Using Magnetostatic Modes and a Tunable Optical Cavity
Wei‐Jiang Wu, Yi‐Pu Wang, Jie Li +2 more·Mar 1, 2024
Quantum computing, quantum communication, and quantum networks rely on hybrid quantum systems operating in different frequency ranges. For instance, the superconducting qubits work in the gigahertz range, while the optical photons used in communicati...
Crosstalk-robust quantum control in multimode bosonic systems
Xinyuan You, Yunwei Lu, Taeyoon Kim +10 more·Mar 1, 2024
High-coherence superconducting cavities offer a hardware-efficient platform for quantum information processing. To achieve universal operations of these bosonic modes, the requisite nonlinearity is realized by coupling them to a transmon ancilla. How...
Optimal Quantum Circuit Cuts with Application to Clustered Hamiltonian Simulation
A. Harrow, Angus Lowe·Mar 1, 2024
We study methods to replace entangling operations with random local operations in a quantum computation, at the cost of increasing the number of required executions. First, we consider “spacelike cuts” where an entangling unitary is replaced with ran...
High-Fidelity Detection on $^{171} \mathrm{Yb}^+$ Qubit via $^2D_{3/2}$ Shelving
Xueying Mai, Liyun Zhang, Yao Lu·Feb 29, 2024
High-fidelity detection of quantum states is indispensable for implementing quantum error correction, a prerequisite for fault-tolerant quantum computation. For promising trapped ion qubits, however, the detection fidelity is inherently limited by st...
Operating semiconductor quantum processors with hopping spins
Chien-An Wang, Valentin John, Hanifa Tidjani +16 more·Feb 28, 2024
Qubits that can be efficiently controlled are essential for the development of scalable quantum hardware. Although resonant control is used to execute high-fidelity quantum gates, the scalability is challenged by the integration of high-frequency osc...
Quantum State Compression with Polar Codes
J. Weinberg, Avijit Mandal, Henry D. Pfister·Feb 28, 2024
In the quantum compression scheme proposed by Schumacher, Alice compresses a message that Bob decompresses. In that approach, there is some probability of failure and, even when successful, some distortion of the state. For sufficiently large blockle...
Quantum distance approximation for persistence diagrams
Bernardo Ameneyro, R. Herrman, G. Siopsis +1 more·Feb 27, 2024
Topological data analysis (TDA) methods can be useful for classification and clustering tasks in many different fields as they can provide two dimensional persistence diagrams that summarize important information about the shape of potentially comple...
Combining quantum processors with real-time classical communication
Almudena Carrera Vazquez, C. Tornow, D. Ristè +3 more·Feb 27, 2024
Quantum computers process information with the laws of quantum mechanics. Current quantum hardware is noisy, can only store information for a short time and is limited to a few quantum bits, that is, qubits, typically arranged in a planar connectivit...
Note on simple and consistent gateset characterization including calibration and decoherence errors
J. Epstein·Feb 27, 2024
Building high-fidelity quantum computers requires efficient methods for the characterization of gate errors that provide actionable information that may be fed back into engineering efforts. Extraction of realistic error models is also critical to ac...
Demonstration of robust and efficient quantum property learning with shallow shadows
Hong-Ye Hu, Andi Gu, Swarnadeep Majumder +7 more·Feb 27, 2024
Extracting information efficiently from quantum systems is crucial for quantum information processing. Classical shadows enable predicting many properties of arbitrary quantum states using few measurements. While random single-qubit measurements are ...
Exact Calculations of Coherent Information for Toric Codes under Decoherence: Identifying the Fundamental Error Threshold
Jong Yeon Lee·Feb 26, 2024
The toric code is a canonical example of a topological error-correcting code. Two logical qubits stored within the toric code are robust against local decoherence, ensuring that these qubits can be faithfully retrieved as long as the error rate remai...
Estimating the electrical energy cost of performing arbitrary state preparation using qubits and qudits in integrated photonic circuits
Maria Carolina Volpato, Gabriel da Silva Sampaio, Pierre-Louis de Assis·Feb 26, 2024
As quantum photonic hardware scales toward computationally relevant sizes, energy consumption has emerged as a key constraint. Programmable photonic integrated circuits, composed of interferometer meshes with tunable phase modulators, provide a flexi...
Trapped ion qubit and clock operations with a visible wavelength photonic coil resonator stabilized integrated Brillouin laser
Nitesh Chauhan, Christopher Caron, Jiawei Wang +5 more·Feb 26, 2024
Integrating precise, stable, ultra-low noise visible light lasers into atomic systems is critical for advancing quantum information sciences and improving scalability and portability. Trapped ions are a leading approach for high-fidelity quantum comp...
Flying-cat parity checks for quantum error correction
Z. M. McIntyre, W. Coish·Feb 26, 2024
Long range, multiqubit parity checks have applications in both quantum error correction and measurement-based entanglement generation. Such parity checks could be performed using qubit-state-dependent phase shifts on propagating pulses of light descr...
The Qubit Information Logic Theory for Understanding Multi‐Qubit Entanglement and Designing Exotic Entangled States
Zixuan Hu, S. Kais·Feb 24, 2024
A “qubit information logic” (QIL) theory is developed that uses the “qubit information equation” (QIE) and logic to describe the correlation behaviors of multi‐qubit entanglement. Introducing the “global information status” and “local information ava...
Ultrafast superconducting qubit readout with the quarton coupler
Yufeng Ye, Jeremy B Kline, Sean Chen +2 more·Feb 24, 2024
Fast, high-fidelity, and quantum nondemolition (QND) qubit readout is an essential element of quantum information processing. For superconducting qubits, state-of-the-art readout is based on a dispersive cross-Kerr coupling between a qubit and its re...
The Stability of Gapped Quantum Matter and Error-Correction with Adiabatic Noise
A. Lavasani, Sagar Vijay·Feb 22, 2024
The codespace of a quantum error-correcting code can often be identified with the degenerate ground-space within a gapped phase of quantum matter. We argue that the stability of such a phase is directly related to a set of coherent error processes ag...
A Quick Introduction to Quantum Machine Learning for Non-Practitioners
Ethan N. Evans, Dominic M. Byrne, Matthew Cook·Feb 22, 2024
This paper provides an introduction to quantum machine learning, exploring the potential benefits of using quantum computing principles and algorithms that may improve upon classical machine learning approaches. Quantum computing utilizes particles g...
How to Fault-Tolerantly Realize Any Quantum Circuit with Local Operations
Shin Ho Choe, Robert Koenig·Feb 21, 2024
We show how to realize a general quantum circuit involving gates between arbitrary pairs of qubits by means of geometrically local quantum operations and efficient classical computation. We prove that circuit-level local stochastic noise modeling an ...
Shuttling for Scalable Trapped-Ion Quantum Computers
Daniel Schoenberger, S. Hillmich, Matthias Brandl +1 more·Feb 21, 2024
Trapped-ion quantum computers exhibit promising potential to provide platforms for high-quality qubits and reliable quantum computation. The quantum charge coupled device (QCCD) architecture is a leading example that offers a modular solution to enab...