Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Highly-entangled, highly-doped states that are efficiently cross-device verifiable
Janek Denzler, S. Varona, T. Guaita +1 more·Jan 20, 2025
In this paper, we introduce a class of highly entangled real quantum states that cannot be approximated by circuits with $\log$-many non-Clifford gates and prove that Bell sampling enables efficient cross-device verification (or distributed inner pro...
Q-RESTORE: Quantum-Driven Framework for Resilient and Equitable Transportation Network Restoration
Daniel Udekwe, Ruimin Ke, J. Lu +1 more·Jan 20, 2025
Efficient and socially equitable restoration of transportation networks post disasters is crucial for community resilience and access to essential services. The ability to rapidly recover critical infrastructure can significantly mitigate the impacts...
Experimental virtual quantum broadcasting
Yuxuan Zheng, Xinfang Nie, Hong-fang Liu +3 more·Jan 20, 2025
The quantum no-broadcasting theorem states that it is fundamentally impossible to perfectly replicate an arbitrary quantum state, even if correlations between the copies are allowed. While quantum broadcasting cannot occur through any physical proces...
Improving thermal state preparation of Sachdev–Ye–Kitaev model with reinforcement learning on quantum hardware
Akash Kundu·Jan 20, 2025
The Sachdev–Ye–Kitaev (SYK) model, known for its strong quantum correlations and chaotic behavior, serves as a key platform for quantum gravity studies. However, variationally preparing thermal states on near-term quantum processors for large systems...
Optical nuclear electric resonance as single qubit gate for trapped neutral atoms
Johannes K. Krondorfer, Sebastian Pucher, Matthias Diez +2 more·Jan 19, 2025
The precise control of nuclear spin states is crucial for a wide range of quantum technology applications. Here, we propose a fast and robust single-qubit gate in $^{87}$Sr, utilizing the concept of optical nuclear electric resonance (ONER). ONER exp...
On the correlation between entanglement and the negative sign problem
Ping Xu, Yang Shen, Yuan-Yao He +1 more·Jan 19, 2025
In this work, we study the correlation between entanglement and the negative sign problem in quantum Monte Carlo for the simulation of low-dimensional strongly correlated quantum many body systems. Entanglement entropy characterizes the difficulty of...
An efficient explicit implementation of a near-optimal quantum algorithm for simulating linear dissipative differential equations
Ivan Novikau, Ilon Joseph·Jan 19, 2025
We propose an efficient block-encoding technique for the implementation of the Linear Combination of Hamiltonian Simulations (LCHS) for simulating dissipative initial-value problems. This algorithm approximates a target nonunitary operator as a weigh...
Dissipative quantum phase transitions in electrically driven lasers
Lei-Lei Nian, Yi-Cheng Wang, Jin-Yi Wang +3 more·Jan 19, 2025
Embedding quantum dot circuits into microwave cavities has emerged as a novel platform for controlling photon emission statistics by electrical means. With such a circuit version of the Rabi model, we reveal previously undefined quantum phase transit...
Hamiltonian Lattice Gauge Theories: emergent properties from Tensor Network methods
Giovanni Cataldi·Jan 19, 2025
This thesis develops advanced Tensor Network (TN) methods to address Hamiltonian Lattice Gauge Theories (LGTs), overcoming limitations in real-time dynamics and finite-density regimes. A novel dressed-site formalism is introduced, enabling efficient ...
Quantum Error Mitigation in Optimized Circuits for Particle-Density Correlations in Real-Time Dynamics of the Schwinger Model
Domenico Pomarico, M. Pandey, Riccardo Cioli +5 more·Jan 18, 2025
Quantum computing gives direct access to the study of the real-time dynamics of quantum many-body systems. In principle, it is possible to directly calculate non-equal-time correlation functions, from which one can detect interesting phenomena, such ...
Hybrid-Quantum Neural Architecture Search for The Proximal Policy Optimization Algorithm
Moustafa Zada·Jan 18, 2025
Recent studies in quantum machine learning advocated the use of hybrid models to assist with the limitations of the currently existing Noisy Intermediate Scale Quantum (NISQ) devices, but what was missing from most of them was the explanations and in...
An RRAM compute-in-memory architecture for high energy-efficient processing of binary matrix-vector multiplication in cryptography
Hao Yue, Yihao Chen, Tianhang Liang +6 more·Jan 18, 2025
Binary matrix-vector multiplication (BMVM) is a key operation in post-quantum cryptography schemes like the Classic McEliece cryptosystem. Conventional computing architectures incur significant energy efficiency loss due to data movement of large mat...
Asymptotic errors in adiabatic evolution
Thomas D. Cohen, Hyunwoo Oh·Jan 18, 2025
The adiabatic theorem in quantum mechanics implies that if a system is in a discrete eigenstate of a Hamiltonian and the Hamiltonian evolves in time arbitrarily slowly, the system will remain in the corresponding eigenstate of the evolved Hamiltonian...
Frozonium: Freezing Anharmonicity in Floquet Superconducting Circuits
Keiran Lewellen, Rohit Mukherjee, Haoyu Guo +3 more·Jan 17, 2025
Floquet engineering is a powerful method that can be used to modify the properties of interacting many-body Hamiltonians via the application of periodic time-dependent drives. Here we consider the physics of an inductively shunted superconducting Jos...
Optimal control in phase space applied to minimal-time transfer of thermal atoms in optical traps
Omar Morandi, Sara Nicoletti, Vladislav Gavryusev +1 more·Jan 17, 2025
We present an optimal control procedure for the non-adiabatic transport of ultracold neutral thermal atoms in optical tweezers arranged in a one-dimensional array, with focus on reaching minimal transfer time. The particle dynamics are modeled first ...
Invariant Theory, Magic State Distillation, and Bounds on Classical Codes
Amolak Ratan Kalra, Shiroman Prakash·Jan 17, 2025
We show that the physical consistency of magic state distillation imposes new constraints on the weight enumerators of classical error-correcting codes. We establish that for $|T\rangle$-state distillation protocols based on linear self-orthogonal $G...
Quantifying the Upper Limit of Backflash Attack in Quantum Key Distribution
Jialei Su, Junxuan Liu, Zihao Chen +6 more·Jan 17, 2025
Quantum key distribution (QKD) provides information-theoretic security grounded in the fundamental laws of physics. Nevertheless, practical imperfections can introduce side channels that expose QKD systems to quantum hacking, especially passive attac...
Electrically triggered spin–photon devices in silicon
Michael Dobinson, Camille Bowness, S. Meynell +10 more·Jan 17, 2025
Quantum networking and computing technologies demand scalable hardware with high-speed control for large systems of quantum devices. Solid-state platforms have emerged as promising candidates, offering scalable fabrication for a wide range of qubits....
Quantum locally recoverable code with intersecting recovery sets
Kaifeng Bu, Weichen Gu, Xiang Li·Jan 17, 2025
We introduce the concept of quantum locally recoverable codes (qLRCs) with intersecting recovery sets. We derive a singleton-like bound for these codes by leveraging the additional information provided by the intersecting recovery sets. Furthermore, ...
Quantum simulation of a class of highly-oscillatory transport equations via Schrödingerisation
Anjiao Gu, Shi Jin·Jan 17, 2025
In this paper, we present quantum algorithms for a class of highly-oscillatory transport equations, which arise in semiclassical computation of surface hopping problems and other related non-adiabatic quantum dynamics, based on the Born-Oppenheimer a...