Papers
Emergent thermal fluctuations and non-Hermitian phase transitions in open photon condensates
Moritz Janning, Roman Kramer, Michael Turaev +2 more·Mar 23, 2026
We investigate the nonequilibrium dynamics of an open photon Bose-Einstein condensate in a dye-filled microcavity using a Lindblad master-equation approach, treating the condensate and the noncondensed fluctuations on the same footing. The driven-dis...
Fiber-optic quantum interface with an array of more than 100 individually addressable atoms on an optical nanofiber
Mitsuyoshi Takahata, Jameesh Keloth, Takashi Yamamoto +3 more·Mar 23, 2026
Integrating the scalability of individually addressable arrays of optical-tweezer-trapped single atoms with the efficient light-matter interface provided by nanophotonic waveguides has been a long-standing challenge in quantum technologies based on a...
Efficient Gaussian Simulations of Fermionic Open Quantum Systems
Yinan Fang, Hyesung Choi, Minchul Lee +1 more·Mar 23, 2026
We review existing classical simulation methods for performing fermionic Gaussian operations and develop new methods to address the gap by adhering to the fundamental theoretical framework established by Bravyi [Quantum Info. Comput. 5, 216 (2005)] f...
Optimal Compilation of Syndrome Extraction Circuits for General Quantum LDPC Codes
Kai Zhang, Dingchao Gao, Zhaohui Yang +4 more·Mar 23, 2026
Quantum error correcting codes (QECC) are essential for constructing large-scale quantum computers that deliver faithful results. As strong competitors to the conventional surface code, quantum low-density parity-check (qLDPC) codes are emerging rapi...
Robust Quantum Sensing via Prethermal Spin Orbits
Enrico Daniel Richter, Ryan J. Smith, Brayden Glockzin +3 more·Mar 22, 2026
Practical performance of quantum sensors is often curtailed by uncontrolled environmental drift (bias-field instability, temperature fluctuations, mechanical vibration), background fields, and imperfect control pulses. This motivates developing physi...
Emergence of Unique Steady Edge States in Trapped Ultracold Atom Systems
Roland Cristopher F. Caballar·Mar 21, 2026
We show that, for a one - dimensional open quantum system of ultracold atoms trapped in an array of harmonic potentials that is weakly coupled to a background Bose - Einstein Condensate (BEC), a unique steady state emerges at either of the two edges ...
Extreme points of absolutely PPT states with exactly three distinct eigenvalues
Nalan Wang, Lin Chen, Zhiwei Song·Mar 21, 2026
Whether the sets of absolutely separable (AS) and absolutely two-qutrit positive-partial-transpose (AP) states are the same has been an open problem in entanglement theory for decades. Since they are both convex sets, we investigate the boundary and ...
QR-SPPS: Quantum-Native Retail Supply Chain Risk Simulation via VQE, ADAPT-VQE Counterfactual Policy Ranking, and DOS-QPE Boltzmann Tail Risk Quantification
Sumit Tapas Chongder·Mar 21, 2026
Classical supply chain risk models treat node failures as statistically independent events, systematically underestimating cascade probabilities when supplier dependencies are strongly correlated. At n=40 nodes, the full correlated failure distributi...
Lamb-shift-induced switching of energy transfer in open quantum batteries
Liang Luo, Shun-Cai Zhao·Mar 21, 2026
Open quantum batteries (QBs) operate under unavoidable system-environment interactions, where both dissipation and coherent renormalization influence their performance. While most previous studies focus on dissipative effects, the role of environment...
Empirical Falsification of Pairwise-Only Explanations for an Engineered Parity Benchmark on a 133-Qubit Superconducting Processor
Petr Sramek·Mar 20, 2026
Scalable quantum characterization and error-mitigation workflows often rely on the assumption that relevant device noise and readout contamination can be adequately captured by low-weight, predominantly pairwise interactions. We report a compact hard...
Pulsed two-photon scattering from a single atom in a waveguide with delay-modified temporal correlations
Matthew Kozma, Sofia Arranz Regidor, Stephen Hughes·Mar 20, 2026
Quantum nonlinearity is an essential ingredient for many quantum technologies, but often the nonlinearity is too weak to be exploited at the few-photon level. However, few photons interacting strongly with single quantum emitters in a waveguide envir...
Non-Hermitian Disordered Systems
Kohei Kawabata, Shinsei Ryu·Mar 20, 2026
Non-Hermitian disordered systems have emerged as a central arena in modern physics, with ramifications spanning condensed matter, quantum, statistical, and high energy contexts. The same principles also underlie phenomena beyond physics, such as netw...
Quantum inference on a classically trained quantum extreme learning machine
Emanuele Brusaschi, Marco Clementi, Marco Liscidini +3 more·Mar 20, 2026
Quantum extreme learning machines (QELMs) are unconventional computing architectures that bear remarkable promise in both classical and quantum machine-learning tasks, such as the estimate of quantum state properties. However, the probabilistic natur...
Ellipticity-Controlled Bright-Dark Coherence Transition in Monolayer WSe2
Kang Lan, Xiangji Cai, Zhongxiao Man +4 more·Mar 20, 2026
The generation of exciton valley coherence typically requires linearly polarized (LP) light as an external coherent drive, whereas circularly polarized (CP) light fails to induce coherence. Here, we develop a unified, microscopically-grounded open-qu...
Transfer of nonlocality and entanglement of an open three-qubit W state in the background of dilaton black hole
Chun-yao Liu, Zheng-wen Long, Qi-liang He·Mar 20, 2026
Constrained by the complexity of theoretical calculations, current research on genuine tripartite nonlocality (GTN) within the relativistic framework concentrates mainly on Greenberger-Horne-Zeilinger-like states, with few studies addressing W states...
First principles characterization of spinterfaces between magnetic Cobaltocene molecule and 2D magnets (CrI$_3$, Fe$_3$GeTe$_2$)
Nikola Machacova, Biplab Sanyal·Mar 19, 2026
In this paper, we examine the properties of spin-polarized interfaces consisting of single-molecule magnet bis(cyclopentadienyl)cobalt(II) (cobaltocene) and two-dimensional magnetic materials, semiconducting CrI$_3$ and metallic Fe$_3$GeTe$_2$, using...
The Bilateral Efficiency of Ethernet: Recalibrating Metcalfe and Boggs After Fifty Years
Paul Borrill·Mar 19, 2026
In July 1976, Metcalfe and Boggs published their foundational paper on Ethernet in Communications of the ACM. Their efficiency model -- E = (P/C)/(P/C + W*T) -- measures the fraction of Ether time carrying good forward packets under contention. For f...
Quantum theory based on real numbers cannot be experimentally falsified
Timothée Hoffreumon, Mischa P. Woods·Mar 19, 2026
Whether the complex numbers of standard quantum theory are experimentally indispensable has remained open for decades. Real quantum theory (RQT), obtained by replacing complex amplitudes with real ones while retaining the usual Kronecker-product comp...
Active Quantum Particles from Engineered Dissipation
Jeanne Gipouloux, Matteo Brunelli, Leticia Cugliandolo +2 more·Mar 19, 2026
We introduce and characterize different models for an active quantum particle where activity arises from engineered dissipation-- specifically, from a suitably coupled nonequilibrium environment. These include a model of a particle moving on a lattic...
Practical Quantum Broadcasting
Ximing Wang, Yunlong Xiao·Mar 19, 2026
Incorporating sample efficiency, by requiring the number of states consumed by broadcasting does not exceed that of a naive prepare-and-distribute strategy, gives rise to the no practical quantum broadcasting theorem. To navigate this limitation, we ...