Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Belief-Adaptive MAP Detection for Molecular ISI Channels with Heteroscedastic Noise
Erencem Ozbey, H. Birkan Yilmaz, Chan-Byoung Chae·Mar 6, 2026
Inter-symbol interference (ISI) with heteroscedastic, or state-dependent, noise is a defining feature of molecular communication via diffusion (MCvD). However, such noise variance dependency across ISI states has not been systematically considered in...
The stabilizer ground state and applications to quantum simulation
Yuping Mao, Chang Chen, Jiaxing Feng +2 more·Mar 6, 2026
The stabilizer ground state is defined is the lowest energy stabilizer state with respect to a given Hamiltonian. In many cases it is highly degenerate and does not give a unique stabilizer state. We define the optimal stabilizer ground state as the ...
Implementation of Quantum Implicit Neural Representation in Deterministic and Probabilistic Autoencoders for Image Reconstruction/Generation Tasks
Saadet Müzehher Eren·Mar 6, 2026
We propose a quantum implicit neural representation (QINR)-based autoencoder (AE) and variational autoencoder (VAE) for image reconstruction and generation tasks. Our purpose is to demonstrate that the QINR in VAEs and AEs can transform information f...
Unified and computable approach to optimal strategies for multiparameter estimation
Zhao-Yi Zhou, Da-Jian Zhang·Mar 6, 2026
Precise estimation of physical parameters underpins both scientific discovery and technological development. A central goal of quantum metrology and sensing is to exploit quantum resources like entanglement to devise optimal strategies for estimating...
Observable nonclassicality witnesses for multiplexed detection systems
Suchitra Krishnaswamy, Martina Jung, Laura Ares +2 more·Mar 6, 2026
We address the problem of constructing witnesses for nonclassical light that are applicable in state-of-the-art photon-counting devices. The key ingredient for the criteria we derive are generalized and directly measurable counting statistics and mat...
End-to-End QKD Using LEO Satellite Networks
Sumit Chaudhary, Baqir Kazmi, Janis Nötzel·Mar 6, 2026
We propose a satellite-based Quantum Key Distribution (QKD) network that enables global-scale, end-to-end secure key exchange without relying on trusted intermediate nodes. The network is formed by a ring constellation of satellites that maintain per...
Summing to Uncertainty: On the Necessity of Additivity in Deriving the Born Rule
Jiaxuan Zhang·Mar 6, 2026
The emergence of intrinsic probability has long been one of the most important and puzzling problems in quantum mechanics, and the law most directly related to this problem is the Born rule. For a century, there have been many attempts to derive the ...
Vertical ion transport in a surface Paul trap: escalator and elevator approaches
Alexey Russkikh, Nikita Zhadnov·Mar 6, 2026
Surface ion traps confining and manipulating tens of ion qubits have become the leading platform for quantum processors with high quantum volume. These devices employ the Quantum Charge-Coupled Device (QCCD) architecture, wherein multiple trapping zo...
Continuum field theory of matchgate tensor network ensembles
Maksimilian Usoltcev, Carolin Wille, Jens Eisert +1 more·Mar 6, 2026
Tensor networks provide discrete representations of quantum many-body systems, yet their precise connection to continuum field theories remains relatively poorly understood. Invoking a notion of typicality, we develop a continuum description for rand...
Long-range mid-infrared energy transfer mediated by hyperbolic phonon polaritons
Gonzalo Álvarez-Pérez, Simone De Liberato, Huatian Hu·Mar 6, 2026
We provide a framework to theoretically describe long-range energy transfer in single and twisted two-dimensional hyperbolic slabs. We demonstrate that phonon polaritons (PhPs, quantum superpositions of photons and lattice vibrations in polar dielect...
Floquet scars and prethermal fragmentation in a driven spin-one chain
Krishanu Ghosh, Diptiman Sen, K. Sengupta·Mar 6, 2026
We study the periodic dynamics of a spin-one chain driven using a square-pulse protocol with amplitude $Q_0$ and frequency $ω_D$. The Hamiltonian of the spin chain hosts a thermodynamically large number of $Z_2$-valued conserved quantities $W_{\ell}$...
Quantum chemistry based on classical mechanics inspired by simulated bifurcation
Fumihiko Aiga, Hayato Goto·Mar 6, 2026
Accurate quantum chemical calculations are critical for understanding molecular properties, yet their computational cost remains a major challenge. Full Configuration Interaction (FCI) provides exact solutions but is prohibitively expensive for large...
Macroscopic entanglement distribution with atomic ensembles
Shuang Li, Jin Hu, Ilia D. Lazarev +4 more·Mar 6, 2026
The distribution of entanglement is a crucial task for quantum communication towards realizing a globe-spanning quantum internet. Recently a protocol for deterministic long-distance distribution of macroscopic entanglement over a network of ensembles...
Grand Canonical-like Thermalization of Quantum Many-body Scars
Jia-wei Wang, Xiang-Fa Zhou, Guang-Can Guo +1 more·Mar 6, 2026
Quantum many-body scar (QMBS) in kinetically constrained quantum systems challenges the conventional eigenstate thermalization hypothesis (ETH). We develop an effective open-system description for constrained dynamics and introduce the definition of ...
Variational Quantum Operator Simulation
Satoru Shoji, Kosuke Ito, Yukihiro Shimizu +1 more·Mar 6, 2026
Implementing time-evolution operators in shallow quantum circuits is important for quantum simulations. The standard method of Trotterization requires a large number of gates to achieve practical accuracy. Variational Quantum Simulation (VQS) is an a...
Characterizing Noise Effects on Multipartite Entanglement via Phase-Space Visualization
B Nithya Priya, S. Saravana Veni, Araceli Venegas-Gomez +1 more·Mar 6, 2026
This paper investigates the behavior of two fundamental types of multipartite entangled states, namely GHZ(3) and W(3) states under Gaussian-distributed amplitude perturbations and White noise model. The Uhlmann-Jozsa fidelity is taken to be the quan...
Significant modifications of Lamb shift at small centripetal accelerations
Yan Peng, Jiawei Hu, Hongwei Yu·Mar 6, 2026
We investigate the Lamb shift of centripetally accelerated atoms coupled to electromagnetic vacuum fluctuations. Focusing on a very small orbital radius (so that the tangential speed remains nonrelativistic and the proper centripetal acceleration can...
Classical simulability of quantum circuits followed by sparse classical post-processing
Yasuhiro Takahashi, Masayuki Miyamoto, Noboru Kunihiro·Mar 6, 2026
We study the classical simulability of a polynomial-size quantum circuit $C_n$ on $n$ qubits followed by sparse classical post-processing (SCP) on $m$ bits, where $m \leq n \leq {\rm poly}(m)$. The SCP is described by a non-zero Boolean function $f_m...
Multi-Shot Quantum Sensing for RF Signal Detection with MIMO Rydberg-Atom Receivers
Saman Atapattu, Harini Hapuarachchi, Nathan Ross·Mar 6, 2026
Rydberg-atom quantum receivers (RAQRs) enable electric-field sensing with quantum-noise-limited performance, yet their optical readout provides only magnitude measurements whose fluctuations follow Rician statistics governed by atomic projection nois...
Triple Antidot Molecules
Naomi Mizuno, Dmitri V. Averin, Xu Du·Mar 6, 2026
We report the realization and modeling of a triple-antidot molecule hosting three interacting quantum Hall quasiparticles, with tunnel coupling between antidots tunable via the magnetic field. The measured tunneling conductance spectrum reveals the m...