Papers

D. Reiche, B. Beverungen, K. Busch +1 more·Feb 18, 2026

The Casimir-Polder force is analyzed when an atom is moving at a constant velocity relative to a collection of translationally invariant macroscopic bodies with generic shapes and compositions. The interaction is described within an approach that acc...

Chirag Srivastava, Aparajita Bhattacharyya, Ujjwal Sen·Feb 18, 2026

We define nonlocal predictability as how well one observer can predict another's measurement outcomes without classical communication, given full knowledge of the shared quantum state and measurement settings. The local bound on nonlocal predictabili...

Ipsita Bar, Aditi Thakar, B. Prasanna Venkatesh·Feb 18, 2026

Preparing subradiant steady states of collectively emitting quantum two-level emitters (TLEs) is hindered by their dark, weakly interacting nature. Existing approaches rely on patterned driving, local control, or structured environments. We propose a...

Da-Wu Xiao, Chong Chen, Ren-Bao Liu·Feb 18, 2026

In conventional lasers, the emitters are typically incoherent, radiating photons independently; in superradiant lasers, many coherent emitters radiate photons collectively, but they essentially do not interact with each other. Here, we present the co...

Boris Tsvelikhovskiy, Bao Bach, Jose Falla +1 more·Feb 18, 2026

The performance of the Quantum Approximate Optimization Algorithm (QAOA) is closely tied to the structure of the dynamical Lie algebra (DLA) generated by its Hamiltonians, which determines both its expressivity and trainability. In this work, we show...

Brendan Rhyno, Bastien Lapierre, Smitha Vishveshwara +2 more·Feb 17, 2026

We digitally simulate quantum many-body dynamics in emergent curved backgrounds using 80 superconducting qubits on IBM Heron processors. By engineering spatially varying couplings in the spin-$\frac12$ XXZ chain, consistent with the low-energy descri...

Xinyu Zhao, Yan Xia·Feb 17, 2026

In this manuscript, we study the Schrödinger cat state transfer in a quantum optical version of Newton's cradle in non-Markovian environment. Based on a non-Markovian master equation, we show that the cat state can be transferred purely through the m...

Yefeng Song, Junxiao Chen, Xiangyu Yang +3 more·Feb 17, 2026

We investigate how quasiperiodic spatial structure enables protocol-induced acceleration in open quantum systems by analyzing the Pontus-Mpemba effect in one-dimensional chains subject to Markovian dephasing. The dynamics are governed by a Lindblad s...

You-Lin Xiang, Xinyu Zhao, Yan Xia·Feb 17, 2026

In traditional research, chaos is frequently accompanied by non-linearity, which typically stems from non-linear interactions or external driving forces. However, in this paper, we present the chaotic behavior that is completely attributed to the non...

Benjamin H. Feintzeig·Feb 16, 2026

It is well known that classical and quantum theories carry distinct types of representations, each type of representation corresponding to possible values of generalized charges in the classical or quantum context. This paper demonstrates a sense in ...

Leonardo A. M. Souza, Olimpio P. de Sá Neto, Enrico Russo +2 more·Feb 16, 2026

We develop a comprehensive quantum estimation framework to quantify how precisely gravitationally induced decoherence can be inferred in optomechanical systems, using single-mode Gaussian probe states. Our approach combines a microscopic description ...

Lucas Alves Zischler, Amirhossein Ghazisaeidi, Carina Castiñeiras Carrero +4 more·Feb 16, 2026

We present an experimental characterization of coexistence-induced interference in QKD transmission arising from SpRS and FWM, validating a comprehensive semi-analytical model for accurate noise estimation. Experimental results show good agreement wi...

Alessio Baldazzi, Roy Philip George Konnoth Ancel, Sebastiano Guaraldo +6 more·Feb 16, 2026

Photonic quantum memristors provide a measurement-induced route to nonlinear and history-dependent quantum dynamics. Experimental demonstrations have so far focused on isolated devices or simple cascaded devices configurations. Here, we experimentall...

Stefano Longhi·Feb 16, 2026

Non-Hermitian systems with globally reciprocal couplings -- such as the Hatano-Nelson model with stochastic imaginary gauge fields -- avoid the conventional non-Hermitian skin effect, displaying erratic bulk localization while retaining ballistic tra...

Luke Antoncich, Yuben Moodley, Ugo Varetto +5 more·Feb 16, 2026

Biomarker-based prediction of clinical outcomes is challenging due to nonlinear relationships, correlated features, and the limited size of many medical datasets. Classical machine-learning methods can struggle under these conditions, motivating the ...

Lucas Ferreira R. de Moura, Daniel Y. Akamatsu, G. D. de Moraes Neto +1 more·Feb 16, 2026

We present a dispersive quantum thermometry protocol for simultaneous estimation of inverse temperature $β$ and interaction strength $x$ using a nonlinear Mach-Zehnder interferometer coupled to a thermal ancilla. We derive closed-form expressions for...

J-B. Gerent, R. Veyron, V. Mancois +3 more·Feb 15, 2026

We propose a novel method to measure the interaction between an ultracold gas of neutral atoms and a surface. This solution combines an optical dipole trap reflected by the surface, a magnetic trap formed by current carrying wires embedded below the ...

Leon Bello, Boris Mesits, Michael Hatridge +1 more·Feb 15, 2026

Scalable, high-fidelity quantum-state readout remains a central challenge in the development of large-scale superconducting quantum processors. Conventional dispersive readout architectures depend on bulky isolators and external amplifiers, introduci...

Sougata Bhattacharyya, Sovik Roy·Feb 15, 2026

We provide an explicit geometric classification of single-qubit projective measurements on one-dimensional linear cluster states within a topological framework. By establishing an explicit geometrical correspondence between local measurements and top...

Yuanbin Chen, Chau Yuen, Chong Meng Samson See·Feb 15, 2026

Rydberg atomic receivers hold extremely high sensitivity to electric fields, yet their effective 3-dB baseband bandwidth under conventional electromagnetically induced transparency (EIT) is typically constrained to tens to a few hundreds of kilohertz...