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Live trends in quantum computing research, updated daily from arXiv.
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Neural Gauge-P Representation for Open Quantum Dynamics of Interacting Bosons
Xiaodong Cao, Zhicheng Zhong·Jul 20, 2026
Simulating the nonequilibrium dynamics of interacting open quantum systems remains challenging beyond small system sizes. Quantum phase-space representations provide a scalable approach, but their useful simulation time can be limited by broad distri...
LLM-Driven Cross-Paradigm Design for Quantum Optimal Control
Yu-Qin Chen, Shi-Xin Zhang·Jul 20, 2026
Quantum optimal control (QOC) underpins adiabatic quantum computation, quantum annealing, and quantum state engineering, yet practical deployment is fundamentally bottlenecked by strict hardware constraints and substantial expert effort required to d...
The finite key effect of side-channel-secure quantum key distribution beyond post-selection technique
Cong Jiang, Zong-Wen Yu, Xiang-Bin Wang·Jul 20, 2026
By applying the framework of entropic uncertainty relation (EUR) and the Quantum Leftover Hash Lemma (QLHL), we introduce a security-proof method for variable-length side-channel-secure (SCS) quantum key distribution (QKD) against coherent attacks. T...
Operator-centric Clifford algebra for variational eigensolvers and finite-shot adaptive selection
Ginanjar Utama, Hermawan Kresno Dipojono·Jul 20, 2026
We develop a sparse operator-centric realization of $n$-qubit variational quantum algorithms in the complex Clifford algebra $\mathrm{Cl}(2n,\mathbb{C}) \cong M(2^n,\mathbb{C})$. Density operators, gates, observables, channels, fermionic modes, and a...
Grounded verification of chemical and materials reasoning: detection is the bottleneck
Can Polat, Mustafa Kurban, Erchin Serpedin +1 more·Jul 19, 2026
Large language models confabulate chemical objects (molecular formulas, space groups, formation energies) in fluent reasoning traces, concentrated on long-tail entities where confidence is least trustworthy. Deterministic, database-grounded verificat...
The History of Hilbert-Space Formulations of Classical Physics
Jacob A. Barandes·Jul 19, 2026
Hilbert-space techniques are widely used not only for quantum theory, but also for classical physics. Two important examples are the Koopman-von Neumann (KvN) formulation and the method of ``classical'' wave functions. As this paper explains, these t...
Broadband Polarization Compensation with Link Segment Reconstruction for Quantum Optical Links
Qingyu Shi, Erwan Trad, Julien Chénedé +1 more·Jul 19, 2026
Polarization-encoded quantum communication requires compensation of polarization transformations induced by the optical links. If the compensator is embedded between two channel segments, the transformations before and after the compensator must be t...
ADEPT: Architecture-Driven Energy-Efficient CNN Fine-Tuning on PIM Accelerators
Pratyush Dhingra, Vibhanshu Sharma, Janardhan Rao Doppa +1 more·Jul 19, 2026
Processing-in-memory-based (PIM) architectures have emerged as a promising solution for accelerating Convolutional Neural Network (CNN) workloads at the edge. Fine-tuning pre-trained CNNs is a common requirement to enhance the model predictive accura...
Colored $Δ_T$ noise probes the topological character of edge modes
Sachiraj Mishra, Colin Benjamin·Jul 19, 2026
We investigate colored $Δ_T$ noise, i.e., finite-frequency $Δ_T$ noise, as a probe of edge-mode (EM) transport in quantum Hall and quantum spin Hall systems. Colored $Δ_T$ noise probes finite-frequency nonequilibrium current fluctuations and dynamica...
Self-Modifying Lean Proof Agents with Verifier-Grounded Benchmark Coevolution
Yuqing Li, Zeguan Wu, Yu Gan +1 more·Jul 19, 2026
Designing effective Lean proof agents is a central challenge in formal mathematical reasoning. Beyond building stronger provers, recent work emphasizes the workflow around Lean: how an agent decomposes proof obligations, uses tools and compiler feedb...
The Information Content of Krylov Observables: A Machine Learning Approach
Ritam Basu·Jul 19, 2026
We employ machine learning to quantify the information carried by three Krylov-space observables: the spread complexity $\mathcal{C}(t)$, the discrete Wigner negativity $N(t)$, and the normalized negativity $χ(t)=N(t)/|S(t)|$, with $S(t)$ the surviva...
Coexistence of long- and quasi-long range spatial order in 1D quantum quasicrystals
A. Mendoza-Coto, M. Grossklags, J. Stefaniak +2 more·Jul 19, 2026
Quasicrystals exhibit long-range positional order without periodicity, arising from multiple incommensurate wave vectors. In self-assembled quasicrystals, the spontaneous breaking of translational invariance gives rise to two Goldstone modes-phonons ...
Interpreting Quantum Learning Models via Stochastic Processes
Johannes Fankhauser, Lukas J. Fiderer, Hans J. Briegel·Jul 19, 2026
Quantum machine learning models define probabilistic input--output maps through coherent quantum evolution and measurement. While such models can exhibit computational advantages, their internal functioning and decision making generally resists inter...
Locally Scrambled Quantum Memories for Loss-Tolerant Entanglement-Assisted Optical Interferometry
Jianqi Sheng·Jul 19, 2026
We formulate a loss-tolerant extension of entanglement-assisted long-baseline optical interferometry in which the astronomical optical coherence is first mapped coherently to distributed quantum memories and is subsequently protected by local scrambl...
Scaling law for optimal excitation storage and superradiant release in waveguide QED systems
Wei Chen, Kuan-Ting Lin, Guin-Dar Lin +1 more·Jul 19, 2026
Driven-dissipative quantum emitters provide a powerful platform for controllable excitation storage and release, with promising applications in quantum batteries and quantum storage. Yet, transient excitation transfer in collective many-body systems ...
Constraints on recovering quantum information after erasure
Mohammad A. Alhejji, Noah Lordi, Omkar Baraskar +2 more·Jul 19, 2026
Suppose that we encode quantum information into $ n $ physical carriers. With what probabilities can we perfectly recover the quantum information after sets of carriers have been erased? This question arises in the study of quantum erasure channels, ...
Chiral Entangled-State Generation through Dissipative Quantum Dynamics
Huixia Gao, Konghao Sun, Yiwen Han +6 more·Jul 19, 2026
Dissipation, though often detrimental to quantum entanglement, can be manipulated for the preparation of entangled states, wherein ingeniously designed quantum jump processes drive the system toward the desired steady state. Here we venture beyond th...
A First Bound on the Moffat Energy and Thorium-229 Clock as a Probe of the Nonlocal Time-Energy Structure and a Proposed Experiment for the use of Nuclear Entanglement and Squeezed States to Test Nonlocal Quantum Field Theory
E. J. Thompson, Arvin Kouroshnia, J. W. Moffat +3 more·Jul 19, 2026
In this paper we derive the nonlocal Time-Energy uncertainty principle and then apply the published $^{229}$Th nuclear clock data as a first probe of the nonlocality scale \(E_M\). By using the direct clock-energy channel, we find conservative lower ...
Truncated Wigner approximation for spins in continuous phase space
Jens Hartmann, Tom Schlegel, Viktoria Noel +2 more·Jul 19, 2026
We review the truncated Wigner approximation (TWA) for spins as a computationally inexpensive numerical approximation method to describe interacting and / or dissipative many-body spin systems. Using the Wigner-Moyal mapping from Hilbert space to a s...
Inter-Set Correlation-Aware Replacement Policy for Energy Efficient RTM-based Caches
Elham Cheshmikhani, Hamed Farbeh·Jul 19, 2026
Today's data-centric applications demand cache architectures that can scale with growing workloads while maintaining high performance and energy efficiency. Fundamental issues such as excessive area consumption and leakage power are increasingly chal...