Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A comparison of calcium sources for ion-trap loading via laser ablation
Daisy R. H. Smith, S. Muralidharan, Roland Hablützel +6 more·Mar 13, 2025
Trapped-ion technology is a leading approach for scalable quantum computing. A key element of ion trapping is reliable loading of atomic sources into the trap. While thermal atomic ovens have traditionally been used for this purpose, laser ablation h...
Scaling active spaces in simulations of surface reactions through sample-based quantum diagonalization
M. A. Barroca, Tanvi P. Gujarati, Vidushi Sharma +6 more·Mar 13, 2025
Quantum-chemical simulations are essential for predicting energies of chemical reactions. Accurately solving the many-body Schr\"odinger equation for reagent and product states of most relevant chemical process is, however, unfeasible. Quantum comput...
Finding Hidden Numbers with Majorana-based Topological Quantum Algorithms: Simulation of the Bernstein-Vazirani Algorithm
Jasmin Bedow, D. Morr·Mar 13, 2025
Executing quantum algorithms using Majorana zero modes - a major milestone for the field of topological quantum computing - requires a platform that can be scaled to large quantum registers, can be controlled in real time and space, and a braiding pr...
Performance of the spin qubit shuttling architecture for a surface code implementation
Berat Yenilen, Arnau Sala, H. Bluhm +2 more·Mar 13, 2025
Qubit shuttling promises to advance some quantum computing platforms to the qubit register sizes needed for effective quantum error correction (QEC), but also introduces additional errors whose impact must be evaluated. The established method to inve...
Bias-preserving and error-detectable entangling operations in a superconducting dual-rail system
Nitish Mehta, James D. Teoh, Taewan Noh +70 more·Mar 13, 2025
For useful quantum computation, error-corrected machines are required that can dramatically reduce the inevitable errors experienced by physical qubits. While significant progress has been made in approaching and exceeding the surface-code threshold ...
Pushing the boundary of quantum advantage in hard combinatorial optimization with probabilistic computers
S. Chowdhury, Navid Anjum Aadit, Andrea Grimaldi +12 more·Mar 13, 2025
Recent demonstrations on specialized benchmarks have reignited excitement for quantum computers, yet their advantage for real-world problems remains an open question. Here, we show that probabilistic computers, co-designed with hardware to implement ...
A discrete Fourier transform based quantum circuit for modular multiplication in Shor's algorithm
A. Patoary, Amit Vikram, V. Galitski·Mar 13, 2025
Shor's algorithm for the prime factorization of numbers provides an exponential speedup over the best known classical algorithms. However, nontrivial practical applications have remained out of reach due to experimental limitations. The bottleneck of...
Efficient Implementation of CRYSTALS-KYBER Key Encapsulation Mechanism on ESP32
Fabian Segatz, Muhammad Ihsan Al Hafiz·Mar 13, 2025
Kyber, an IND-CCA2-secure lattice-based post-quantum key-encapsulation mechanism, is the winner of the first post-quantum cryptography standardization process of the US National Institute of Standards and Technology. In this work, we provide an effic...
Efficient spectrum analysis for multi-junction superconducting circuit
A. Tomonaga, H. Mukai, K. Mizuno +1 more·Mar 13, 2025
The extraction of transition frequencies from a spectrum has conventionally relied on empirical methods, and particularly in complex systems, it is a time-consuming and cumbersome process. To address this challenge, we establish a semi-automated effi...
Fabrication of Metal Air Bridges for Superconducting Circuits using Two-photon Lithography
Yi-Hsiang Huang, Haozhi Wang, Z. Shen +3 more·Mar 13, 2025
Extraneous high frequency chip modes parasitic to superconducting quantum circuits can result in decoherence when these modes are excited. To suppress these modes, superconducting air bridges (AB) are commonly used to electrically connect ground plan...
Coherence of a hole spin flopping-mode qubit in a circuit quantum electrodynamics environment
L'eo Noirot, C. X. Yu, J. C. Abadillo-Uriel +5 more·Mar 13, 2025
The entanglement of microwave photons and spin qubits in silicon represents a pivotal step forward for quantum information processing utilizing semiconductor quantum dots. Such hybrid spin circuit quantum electrodynamics (cQED) has been achieved by g...
Quantum-Chiplet: A Novel Python-Based Efficient and Scalable Design Methodology for Quantum Circuit Verification and Implementation
Yu-Ting Kao, Hao-Yu Lu, Yeong-Jar Chang +1 more·Mar 13, 2025
Analysis and verification of quantum circuits are highly challenging, given the exponential dependence of the number of states on the number of qubits. For analytical derivation, we propose a new quantum polynomial representation (QPR) to facilitate ...
Simulating charging characteristics of lithium iron phosphate by electro-ionic optimization on a quantum annealer
Tobias Binninger, Yin-Ying Ting, Konstantin Köster +4 more·Mar 13, 2025
The rapid evolution of quantum computing hardware opens up new avenues in the simulation of energy materials. Today's quantum annealers are able to tackle complex combinatorial optimization problems. A formidable challenge of this type is posed by ma...
A useful metric for the NISQ era: Qubit error probability and its role in zero noise extrapolation
Nahual Sobrino, Unai Aseginolaza, J. Jornet-Somoza +1 more·Mar 13, 2025
Accurate assessment and management of errors is indispensable for extracting useful results from noisy intermediate-scale quantum devices. In this work, we propose the qubit error probability (QEP), a device specific metric that combines relaxation, ...
Fast Sideband Control of a Weakly Coupled Multimode Bosonic Memory
Jordan Huang, Thomas J. DiNapoli, Gavin Rockwood +9 more·Mar 13, 2025
Circuit quantum electrodynamics (cQED) with superconducting cavities coupled to nonlinear circuits like transmons offers a promising platform for hardware-efficient quantum information processing. We address critical challenges in realizing this arch...
Quantum Computer Controlled by Superconducting Digital Electronics at Millikelvin Temperature
Caleb Jordan, Jacob Bernhardt, Joseph Rahamim +16 more·Mar 12, 2025
Current superconducting quantum computing platforms face significant scaling challenges, as individual signal lines are required for control of each qubit. This wiring overhead is a result of the low level of integration between control electronics a...
Acceleration without photon pair creation
Sara Kanzi, Daniel Hodgson, Almut Beige·Mar 12, 2025
Whenever an experiment can be described classically, quantum physics must predict the same outcome. Intuitively, there is nothing quantum about an accelerating observer travelling through a vacuum. It is therefore not surprising that many people are ...
Fusion Dynamics of Majorana Zero Modes
Themba Hodge, Tuan Kieu, Jasmin Bedow +3 more·Mar 12, 2025
Braiding and fusion of Majorana zero modes are key elements of any future topological Majorana-based quantum computer. Here, we investigate the fusion dynamics of Majorana zero modes in the spinless Kitaev model, as well as in a spinful model describ...
Quantum Averaging Theory for Multi-Timescale Driven Quantum Systems
Kristian D. Barajas, Wesley C. Campbell·Mar 12, 2025
We present a multi-timescale Quantum Averaging Theory (QAT), a unitarity-preserving generalized Floquet framework for analytically modeling periodically and almost-periodically driven quantum systems across multiple timescales. By integrating the Mag...
On the generalized eigenvalue problem in subspace-based excited state methods for quantum computers
Prince Frederick Kwao, Srivathsan Poyyapakkam Sundar, Brajesh Gupt +1 more·Mar 12, 2025
Solving challenging problems in quantum chemistry is one of the most promising applications of quantum computers. Within the quantum algorithms proposed for problems in excited state quantum chemistry, subspace-based quantum algorithms, including qua...