Papers
Multi-emitter oscillating bound states in Waveguide QED
Sergi Terradas-Briansó, Carlos A. González-Gutiérrez, Iván Huarte +2 more·Feb 17, 2026
Waveguide quantum electrodynamics platforms have emerged as promising candidates for exploring and implementing non-Markovian quantum phenomena. In this work, we investigate the formation and dynamics of superpositions of bound states in a cavity arr...
Benchmarking the Lights Out Problem on Real Quantum Hardware
Maksims Dimitrijevs, Maria Palchiha, Abuzer Yakaryilmaz·Feb 17, 2026
We implement the Lights Out problem on a 2D grid and on Mobius ladder graphs and evaluate the performance of Grover's search on real quantum hardware. We use two instances using 9 and 16 qubits, and implement them on publicly available quantum hardwa...
Generating quantum entanglement from sunlight
Cheng Li, Jasvinder Brar, Michael Küblböck +3 more·Feb 17, 2026
Energy consumption is becoming a serious bottleneck for integrating quantum technologies within the existing global information infrastructure. In photonic architectures, considerable energy overheads stem from using lasers, whose high coherence was ...
Theory of temporal three-photon interference
Nilakshi Senapati, Girish Kulkarni, Anand K. Jha·Feb 17, 2026
The recent demonstrations of cascaded PDC (CPDC) and the hopeful prospects of realizing third-order PDC (TOPDC) for the generation of three-photon entangled states are paving the way for experimental studies on genuine three-photon interference. In t...
Quantum Computing for Healthcare Digital Twin Systems
Asma Taheri Monfared, Andrea Bombarda, Angelo Gargantini +1 more·Feb 17, 2026
The growing complexity of healthcare systems requires advanced computational models for real-time monitoring, secure data exchange, and intelligent decision-making. Digital Twins (DTs) provide virtual representations of physical healthcare entities, ...
Non-Markovian environment induced chaos in optomechanical system
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...
Probabilistic Cutoffs in Homogeneous Quantum Repeater Chains
Jeroen Grimbergen, Stav Haldar, Alvaro Gomez Inesta +1 more·Feb 16, 2026
We study quantum repeater chains in which entangled links between neighbouring nodes are created through heralded entanglement generation and adjacent links are swapped as soon as possible. Since heralded entanglement generation attempts succeed only...
A lesson from a small particle about quantum theory with strong implications for cosmology
Daniel Sudarsky, Octavio Guerrero·Feb 16, 2026
The establishment of extremely strong bounds on the magnitude of the electric dipole moment of the neutron, a quantity that is of great importance for determining the level of time reversal symmetry respected by the strong interactions, offers an imp...
High-fidelity Quantum Readout Processing via an Embedded SNAIL Amplifier
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...
Fully integrated quantum frequency processor on a silicon chip
Sara Congia, Leopold Virot, Elena Rovetta +5 more·Feb 15, 2026
Frequency-bin encoding has recently emerged as a powerful approach for photonic quantum information processing, offering high dimensionality, gate-parallelization, and compatibility with existing telecommunication infrastructure. However, its scalabl...
TensorCircuit-NG: A Universal, Composable, and Scalable Platform for Quantum Computing and Quantum Simulation
Shi-Xin Zhang, Yu-Qin Chen, Weitang Li +22 more·Feb 15, 2026
We present TensorCircuit-NG, a next-generation quantum software platform designed to bridge the gap between quantum physics, artificial intelligence, and high-performance computing. Moving beyond the scope of traditional circuit simulators, TensorCir...
Bidirectional Quantum Processor Interfacing by a 4-Kelvin Analog Signal Chain for Superconducting Qubit Control and Quantum State Readout
Deepak R, Lokendra Kanawat, Jayadeep K +1 more·Feb 15, 2026
This paper presents a comprehensive cryogenic analog signal processing architecture designed for superconducting qubit control and quantum state readout operating at 4 Kelvin. The proposed system implements a complete bidirectional signal path bridgi...
Generation of large Fock states from coherent states using Kerr interaction and displacement
Nilakantha Meher, Anirban Pathak, S. Sivakumar·Feb 14, 2026
We discuss a scheme to generate large Fock states. The scheme involves repeatedly applying an experimentally feasible unitary transformation to convert a semiclassical state into a Fock state. The transformation combines Kerr interaction, which is a ...
Quantum logic control and entanglement in hybrid atom-molecule arrays
Chi Zhang, Sara Murciano, Nathanan Tantivasadakarn +1 more·Feb 13, 2026
Polar molecules, with their rich internal structure, offer immense potential for fundamental physics, quantum technology, and controlled chemistry. However, their utilization is currently limited because of slow and imperfect state detection and weak...
Deterministic Generation of Arbitrary Fock States via Resonant Subspace Engineering
Shan Jin, Ming Li, Weizhou Cai +10 more·Feb 12, 2026
Deterministic preparation of high-excitation Fock states is a central challenge in bosonic quantum information, with control complexity that generically explodes as the Hilbert space dimension grows. Here we introduce resonant subspace engineering (R...
Millisecond-Scale Calibration and Benchmarking of Superconducting Qubits
Malthe A. Marciniak, Rune T. Birke, Johann B. Severin +13 more·Feb 12, 2026
Superconducting qubit parameters drift on sub-second timescales, motivating calibration and benchmarking techniques that can be executed on millisecond timescales. We demonstrate an on-FPGA workflow that co-locates pulse generation, data acquisition,...
Experimental challenges and prospects for quantum-enhanced energy conversion: Stationary Fano coherence in V-type qutrits interacting with polarized incoherent radiation
Ludovica Donati, Francesco Saverio Cataliotti, Stefano Gherardini·Feb 12, 2026
Quantum coherence offers potential for energy conversion technologies. It influences light absorption and emission, affecting energy conversion limits and efficiency. As a result, quantum coherence is being harnessed to boost performance in quantum h...
Scalable and Highly Fault-Tolerant Circular Quantum Byzantine Agreement
Chen-Xun Weng, Ming-Yang Li, Shi-Gen Li +4 more·Feb 12, 2026
Quantum Byzantine Agreement (QBA), a cornerstone of quantum blockchain, offers inherent advantages in security and fault tolerance over classical protocols, guaranteed by the laws of quantum mechanics. However, existing multiparty QBA protocols face ...
Microscopic Origin of Superradiant Biphoton Emission in Atomic Ensembles
Zi-Yu Liu, Jiun-Shiuan Shiu, Wei-Lin Chen +1 more·Feb 11, 2026
Superradiant biphoton emission from atomic ensembles provides a powerful route to generating highly correlated quantum light, yet its microscopic physical origin has remained incompletely understood. In particular, it is often unclear how collective ...
Nonlinear integrated quantum photonics with AlGaAs
F. Baboux, G. Moody, S. Ducci·Feb 11, 2026
Integrated photonics provides a powerful approach for developing compact, stable and scalable architectures for the generation, manipulation and detection of quantum states of light. To this end, several material platforms are being developed in para...