Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Optimal multicore quantum computing with few interconnects
J. Montes, F. Borondo, G. Carlo·Jan 17, 2025
Noisy intermediate-scale quantum processors have produced a quantum computation revolution in recent times. However, to make further advances, new strategies to overcome the error rate growth are needed. One possible way out is dividing these devices...
Introducing Post-Quantum algorithms in Open RAN interfaces
Pedro Otero-García, Ana Fernández Vilas, Manuel Fernández-Veiga·Jan 17, 2025
Nowadays, 5G architecture is characterized by the use of monolithic hardware, where the configuration of its elements is completely proprietary for each manufacturer. In recent years, as an alternative to this centralized architecture, a new model ha...
Finite-time Unruh effect: Waiting for the transient effects to fade off
D. Jaffino Stargen·Jan 16, 2025
We investigate the transition probability rate of a Unruh-DeWitt (UD) detector interacting with massless scalar field for a finite duration of proper time, $T$, of the detector. For a UD detector moving at a uniform acceleration, $a$, we explicitly s...
Efficient measure of information backflow with a quasistochastic process
Kelvin Onggadinata, Teck Seng Koh·Jan 16, 2025
Characterization and quantification of non-Markovian dynamics in open quantum systems are topical issues in the rapidly developing field of quantum computation and quantum communication. A standard approach based on the notion of information backflow...
Large-range tuning and stabilization of the optical transition of diamond tin-vacancy centers by in situ strain control
J. M. Brevoord, Leonardo G. C. Wienhoven, Nina Codreanu +10 more·Jan 16, 2025
The negatively charged tin-vacancy (SnV−) center in diamond has emerged as a promising platform for quantum computing and quantum networks. To connect SnV− qubits in large networks, in situ tuning and stabilization of their optical transitions are es...
Elucidating the Physical and Mathematical Properties of the Prouhet-Thue-Morse Sequence in Quantum Computing
D. Jankovi'c, R'emi Pasquier, Jean-Gabriel Hartmann +1 more·Jan 16, 2025
This study explores the applications of the Prouhet-Thue-Morse (PTM) sequence in quantum computing, highlighting its mathematical elegance and practical relevance. We demonstrate the critical role of the PTM sequence in quantum error correction, in n...
Performance Analysis for Crosstalk Errors between Parallel Entangling Gates in Trapped Ion Quantum Error Correction
Fang Liu, Gaoxiang Tang, Luming Duan +1 more·Jan 16, 2025
The ability to execute a large number of quantum gates in parallel is a fundamental requirement for quantum error correction, allowing an error threshold to exist under the finite coherence time of physical qubits. Recently, two-dimensional ion cryst...
Partonic distribution functions and amplitudes using tensor network methods
Zhong-Bo Kang, Noah Moran, Peter Nguyen +1 more·Jan 16, 2025
Calculations of the parton distribution function (PDF) and distribution amplitude (DA) are highly relevant to core experimental programs as they provide non-perturbative inputs to inclusive and exclusive processes, respectively. Direct computation of...
Unitary Expressions: A Necessary Abstraction for Extensible Quantum Programming Languages and Systems
Ed Younis·Jan 16, 2025
Quantum gates are the fundamental instructions of digital quantum computers. Current programming languages, systems, and software development toolkits identify these operational gates by their titles, which requires a shared understanding of their me...
Quantum-Centric Algorithm for Sample-Based Krylov Diagonalization
J. Yu, Javier Robledo Moreno, Joseph Iosue +17 more·Jan 16, 2025
Approximating the ground state of many-body systems is a key computational bottleneck underlying important applications in physics and chemistry. The most widely known quantum algorithm for ground state approximation, quantum phase estimation, is out...
Adaptive-depth randomized measurement for fermionic observables
Ka Bian, Bujiao Wu·Jan 16, 2025
Accurate estimation of fermionic observables is essential for advancing quantum physics and chemistry. The fermionic classical shadow (FCS) method offers an efficient framework for estimating these observables without requiring a transformation into ...
Comprehensive Survey of QML: From Data Analysis to Algorithmic Advancements
Sahil Tomar, Rajeshwar Tripathi, Sandeep Kumar·Jan 16, 2025
Quantum Machine Learning represents a paradigm shift at the intersection of Quantum Computing and Machine Learning, leveraging quantum phenomena such as superposition, entanglement, and quantum parallelism to address the limitations of classical appr...
Pretty-good simulation of all quantum measurements by projective measurements
M. Kotowski, Michał Oszmaniec·Jan 16, 2025
In quantum theory general measurements are described by so-called Positive Operator-Valued Measures (POVMs). We show that in $d$-dimensional quantum systems an application of depolarizing noise with constant (independent of $d$) visibility parameter ...
Optimizing compilation of error correction codes for 2xN quantum dot arrays and its NP-hardness
Anthony Micciche, Feroz Ahmed Mian, Anasua Chatterjee +2 more·Jan 15, 2025
The ability to physically move qubits within a register allows the design of hardware-specific error-correction codes, which can achieve fault-tolerance while respecting other constraints. In particular, recent advancements have demonstrated the shut...
Balanced cross-Kerr coupling for superconducting qubit readout
Alex A. Chapple, Othmane Benhayoune-Khadraoui, Simon Richer +1 more·Jan 15, 2025
Dispersive readout, the standard method for measuring superconducting qubits, is limited by multiphoton qubit-resonator processes arising even at moderate drive powers. These processes degrade performance, causing dispersive readout to lag behind sin...
Classical and quantum chaos in bean- and peanut-shaped billiards
Pranaya Pratik Das, Tanmayee Patra, Biplab Ganguli·Jan 15, 2025
The geometry of a billiard boundary fundamentally governs its dynamics, ranging from integrable to mixed and fully chaotic regimes. Bean- and peanut-shaped billiards have varying curvature with both focusing and defocusing walls without a neutral seg...
Quantum Reservoir Computing and Risk Bounds
Naomi Mona Chmielewski, Nina Amini, Joseph Mikael·Jan 15, 2025
We propose a way to bound the generalisation errors of several classes of quantum reservoirs using the Rademacher complexity. We give specific, parameter-dependent bounds for two particular quantum reservoir classes. We analyse how the generalisation...
Demonstrating quantum error mitigation on logical qubits
A. Zhang, Haipeng Xie, Yu Gao +32 more·Jan 15, 2025
A long-standing challenge in quantum computing is developing technologies to overcome the inevitable noise in qubits. To enable meaningful applications in the early stages of fault-tolerant quantum computing, devising methods to suppress post-correct...
High-frequency readout free from transmon multi-excitation resonances
P. Kurilovich, T. Connolly, C. G. L. Bottcher +12 more·Jan 15, 2025
Quantum computation will rely on quantum error correction to counteract decoherence. Successfully implementing an error correction protocol requires the fidelity of qubit operations to be well-above error correction thresholds. In superconducting qua...
Photon-number conserved universal quantum logic employing continuous-time quantum walk on dual-rail qubit arrays
Hao-Yu Guan, Yifei Li, Xiu-Hao Deng·Jan 15, 2025
We demonstrate a synergy between dual-rail qubit encoding and continuous-time quantum walks (CTQW) to realize universal quantum logic in superconducting circuits. Utilizing the photon-number-conserving dynamics of CTQW on dual-rail transmons, which s...