Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hamiltonian Reordering for Shallower Trotterization Circuits
Cédric Ho Thanh·Mar 14, 2025
Quantum simulation is a popular application of quantum computing, but its practical realization is hindered by the technical limitations of current devices. In this work, we focus on preprocessing Hamiltonians before Trotterization to generate shallo...
Floquet-ADAPT-VQE: A Quantum Algorithm to Simulate Non-Equilibrium Physics in Periodically Driven Systems
Abhishek Kumar, Karunya Shirali, N. Mayhall +2 more·Mar 14, 2025
Periodically driven quantum systems exhibit many fascinating phenomena absent in equilibrium systems, but their simulation is more challenging than that of static systems. Consequently, quantum simulation of these systems offers greater opportunity f...
Testing Eigenstate Thermalization Hypothesis on small-scale quantum processors
M. Srihari, Anil Shaji·Mar 14, 2025
The Eigenstate Thermalization Hypothesis (ETH) is a framework for discussing thermal behavior originating from chaotic dynamics in isolated many-body quantum systems. The PXP model, where certain states do not thermalize, has been compared with the S...
Scaffold-Assisted Window Junctions for Superconducting Qubit Fabrication
Chung-Ting Ke, J. Tsai, Yen-Chun Chen +13 more·Mar 14, 2025
The superconducting qubit is one of the promising directions in realizing fault-tolerant quantum computing (FTQC), which requires many high-quality qubits. To achieve this, it is desirable to leverage modern semiconductor industry technology to ensur...
High-Efficiency, Low-Loss Floquet-mode Traveling Wave Parametric Amplifier
Jennifer Wang, Kaidong Peng, Jeffrey M. Knecht +12 more·Mar 14, 2025
Advancing fault-tolerant quantum computing and fundamental science necessitates quantum-limited amplifiers with near-ideal quantum efficiency and multiplexing capability. However, existing solutions typically achieve one at the expense of the other. ...
Scaling the Automated Discovery of Quantum Circuits via Reinforcement Learning with Gadgets
J. Olle, O. Yevtushenko, Florian Marquardt·Mar 14, 2025
Reinforcement Learning (RL) has established itself as a powerful tool for designing quantum circuits, which are essential for processing quantum information. RL applications have typically focused on circuits of small to intermediate complexity, as c...
The waves-in-space Purcell effect for superconducting qubits
Param Patel, Mingkang Xia, Chao Zhou +5 more·Mar 14, 2025
Quantum information processing, especially with quantum error correction, requires both long-lived qubits and fast, quantum non-demolition readout. In superconducting circuits this leads to the requirement to both strongly couple qubits, such as tran...
Quantum ensemble learning with a programmable superconducting processor
Jiachen Chen, Yao-Juan Wu, Zhen Yang +30 more·Mar 14, 2025
Quantum machine learning is among the most exciting potential applications of quantum computing. However, the vulnerability of quantum information to environmental noises and the consequent high cost for realizing fault tolerance has impeded the quan...
A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity
Michael Renger, Jeroen Verjauw, Nicola Wurz +62 more·Mar 13, 2025
In this work we introduce a superconducting quantum processor architecture that uses a transmission-line resonator to implement effective all-to-all connectivity between six transmon qubits. This architecture can be used as a test-bed for algorithms ...
Computing band gaps of periodic materials via sample-based quantum diagonalization
Alan Duriez, Pamela C. Carvalho, Marco Antonio Barroca +7 more·Mar 13, 2025
A key objective of computational solid state physics is to predict electronic properties of periodic materials. However, electronic structure simulations based on density functional theory fail to predict experimental results if correlations are not ...
Distilled remote entanglement between superconducting qubits across optical channels
Nicolas Dirnegger, Moein Malekakhlagh, Vikesh Siddhu +5 more·Mar 13, 2025
A promising quantum computing architecture comprises modules of superconducting quantum processors linked via optical channels using quantum transducers. As quantum transducer hardware improves, a need has arisen to understand the quantitative relati...
Quantum teleportation between simulated binary black holes
Aiden Daniel, Tanmay Bhore, Jiannis K. Pachos +2 more·Mar 13, 2025
The quantum description of a black hole predicts that quantum information hidden behind the event horizon can be teleported outside almost instantaneously. In this work, we demonstrate that a chiral spin-chain model, which naturally simulates a binar...
Direct estimation of arbitrary observables of an oscillator
Tanjung Krisnanda, Fernando Valadares, Kyle Timothy Ng Chu +6 more·Mar 13, 2025
Quantum harmonic oscillators serve as fundamental building blocks for quantum information processing, particularly in the context of the bosonic circuit quantum electrodynamics (cQED) platform. Conventional methods for extracting oscillator propertie...
Adiabatic elimination and Wigner function approach in microscopic derivation of Open Quantum Brownian Motion
Ayanda Zungu, Ilya Sinayskiy, Francesco Petruccione·Mar 13, 2025
Open Quantum Brownian Motion (OQBM) is a new class of quantum Brownian motion in which the dynamics of the Brownian particle depend not only on interactions with a thermal environment but also on the state of its internal degrees of freedom. For an O...
Approximation Methods for Simulation and Equivalence Checking of Noisy Quantum Circuits
Mingyu Huang, Ji Guan, Wang Fang +1 more·Mar 13, 2025
In the current NISQ (Noisy Intermediate-Scale Quantum) era, simulating and verifying noisy quantum circuits is crucial but faces challenges such as quantum state explosion and complex noise representations, constraining simulation and equivalence che...
Quantum entanglement response to pulsed gate modulation
E. M. Fernandes, L. Sanz, F. M. Souza·Mar 13, 2025
We examine the impact of time-dependent gate voltages on entanglement generation in two capacitively coupled charge qubits, with single-electron injection triggered on demand. The gate voltage modulates the tunnel coupling between the qubits and elec...
Quantum Error Detection For Early Term Fault-Tolerant Quantum Algorithms
Tom Ginsberg, Vyom Patel·Mar 13, 2025
Quantum error detection (QED) offers a promising pathway to fault tolerance in near-term quantum devices by balancing error suppression with minimal resource overhead. However, its practical utility hinges on optimizing design parameters-such as synd...
Quantum switches for single-photon routing and entanglement generation in waveguide-based networks
Juan Cumbrado, R. Puebla·Mar 13, 2025
The interconnection of quantum nodes holds great promise for scaling up quantum computing units and enabling information processing across long-distance quantum registers. Such quantum networks can be realized using superconducting qubits linked by w...
Experimental Factoring Integers Using Fixed-Point-QAOA with a Trapped-Ion Quantum Processor
I. Zalivako, A. Chernyavskiy, Anastasiia S. Nikolaeva +10 more·Mar 13, 2025
Abstract Factoring integers is considered as a computationally hard problem for classical methods, whereas there exists polynomial-time Shor’s quantum algorithm for solving this task. However, requirements for running Shor’s algorithm for realistic t...
Observation of the acoustic Purcell effect with a color-center and a nanomechanical resonator
Graham Joe, Michael Haas, K. Kuruma +9 more·Mar 13, 2025
The radiative properties of atoms are inherently linked to their surrounding environment. Placing an electromagnetic resonator around atoms can enhance spontaneous emission, as shown by Purcell in the 1940s. This approach is now routinely used in qua...