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Live trends in quantum computing research, updated daily from arXiv.

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28,188 papers found

Subradiant Decay in 2D and 3D Atomic Arrays

Nicola Piovella, Romain Bachelard·Nov 14, 2025

Subradiance is a phenomenon where coupled emitters radiate light at a slower rate than independent ones. While its observation was first reported in disordered cold atom clouds, ordered subwavelength arrays of emitters have emerged as promising platf...

Quantum Physics

Lorentz Transformation in Quantum Mechanics

Marcello Baldo·Nov 14, 2025

The compatibility of special relativity and Quantum Mechanics has been questioned by several authors. The origin of this tension can be traced back mainly to the introduction of the measurement processes and the corresponding wave function reduction,...

Quantum Physics

Scaling of free cumulants in closed system-bath setups

Merlin Füllgraf, Jochen Gemmer, Jiaozi Wang·Nov 14, 2025

The Eigenstate Thermalization Hypothesis (ETH) has been established as a cornerstone for understanding thermalization in quantum many-body systems. Recently, there has been growing interest in the full ETH, which extends the framework of the conventi...

cond-mat.stat-mechQuantum Physics

Quantum limit cycles and synchronization from a measurement perspective

Tobias Nadolny, Christoph Bruder·Nov 14, 2025

Limit-cycle oscillators are the basic building blocks for synchronization; yet, the notion of a quantum limit cycle has remained unclear. Here, we study quantum limit cycles and synchronization in the presence of continuous heterodyne measurement. Th...

Quantum Physicsnlin.PS

Solving a Nonlinear Eigenvalue Equation in Quantum Information Theory: A Hybrid Approach to Entanglement Quantification

Abrar Ahmed Naqash, Fardeen Ahmad Sofi, Mohammad Haris Khan +1 more·Nov 14, 2025

Nonlinear eigenvalue equations arise naturally in quantum information theory, particularly in the variational quantification of entanglement. In this work, we present a hybrid analytical and numerical framework for evaluating the geometric measure of...

Mathematical PhysicsQuantum Physics

Topological states and flat bands in exactly solvable decorated Cayley trees

Wanda P. Duss, Askar Iliasov, Tomáš Bzdušek·Nov 14, 2025

We derive the full spectrum of decorated Cayley trees that constitute tree analogs of selected two-dimensional Euclidean lattices; namely of the Lieb, the double Lieb, the kagome, and the star lattice. The common feature of these Euclidean lattices i...

Mesoscale Physicscond-mat.stat-mechQuantum Physics

Hyperpolarized Molecular Nuclear Spins Achieve Magnetic Amplification

Shengbang Zhou, Qing Li, Yi Ren +6 more·Nov 14, 2025

The use of nuclear spins as physical sensing systems is disadvantaged by their low signal responsivity, particularly when compared to sensing techniques based on electron spins. This primarily results from the small nuclear gyromagnetic ratio and the...

Quantum Physics

Efficient circuits for leaf-separable state preparation

Sunil Vittal, Anthony Wilkie, Nika Rastegari +2 more·Nov 14, 2025

Efficient state preparation is a challenging and important problem in quantum computing. In this work, we present a recursive state preparation algorithm that combines logarithmic-depth Dicke state circuits with Hamming weight encoders for efficientl...

Quantum Physics

Relative entropy for locally squeezed states

Daniela Cadamuro, Markus B. Fröb, Dimitrios Katsinis +1 more·Nov 14, 2025

Relative entropy serves as a fundamental measure of state distinguishability in both quantum information theory and relativistic quantum field theory. Despite its conceptual importance, however, explicit computations of relative entropy remain notori...

Quantum Physicshep-thMathematical Physics

Ultrafast quantum gates with fully quantized free-electron quantum optics

Yongcheng Ding·Nov 14, 2025

Free-electron quantum optics provides a versatile platform for manipulating electrons at the quantum level with potential applications in quantum information technologies. We propose a grating-based architecture for fully quantized free-electron quan...

Quantum Physics

The Riemann Hypothesis Emerges in Dynamical Quantum Phase Transitions

ShiJie Wei, Yue Zhai, Quanfeng Lu +7 more·Nov 14, 2025

The Riemann Hypothesis (RH), one of the most profound unsolved problems in mathematics, concerns the nontrivial zeros of the Riemann zeta function. Establishing connections between the RH and physical phenomena could offer new perspectives on its phy...

Quantum Physicshep-thMathematical Physics

Electrical thermography via centimetre-scale fiber-based distributed temperature sensing

Victor Cochet, Axel Faccio, Georgios Stoikos +4 more·Nov 14, 2025

We present a Raman-based Distributed Temperature Sensor (RDTS) with centimetre-scale resolution for thermographic analysis of electronic circuits. Temperature is measured along a single-mode fiber routed across a custom printed circuit board (PCB) wi...

Quantum Physicsphysics.app-phphysics.ins-detphysics.optics

Quantum Electron Clouds near Black Holes: Black Atoms and Molecules

Hinako Iseki, Shin Sasaki, Kenta Shiozawa·Nov 14, 2025

We study quantum mechanical wavefunctions near highly curved spaces, i.e., black holes. By utilizing the formalism developed by DeWitt, we derive the Schrödinger equations in the vicinity of the Schwarzschild and the Reissner-Nordström black hole geo...

gr-qchep-thQuantum Physics

Perovskite Nanocrystals as Emerging Single-Photon Emitters: Progress, Challenges, and Opportunities

Jehyeok Ryu, Victor Krivenkov, Adam Olejniczak +2 more·Nov 14, 2025

Metal-halide perovskite nanocrystals (PNCs) have emerged as leading candidates for next-generation quantum emitters, offering a unique combination of high photoluminescence quantum yield, tunable emission, short radiative lifetimes, and record-high s...

physics.opticsMesoscale Physicscond-mat.mtrl-sciQuantum Physics

Magnetic flux and its topological effects in Aharonov-Bohm effect

Manvendra Somvanshi, D. Jaffino Stargen·Nov 14, 2025

The Aharonov-Bohm effect is a physical phenomenon in which the quantum state of a charged particle acquires a phase shift that is directly proportional to the magnetic flux, $Φ$, due to a (classical) magnetic field, ${\mathbf B}$, which is confined i...

Quantum Physicshep-thMathematical Physics

Edwards Localization

Riccardo Fantoni·Nov 14, 2025

We study the localization problem in quantum stochastic mechanics. We start from the Edwards model for a particle in a bath of scattering centers and prove static localization of the ground state wavefunction of the particle in a one dimensional squa...

cond-mat.mtrl-scicond-mat.dis-nncond-mat.stat-mechphysics.comp-ph

Generalizing quantum dimensions: Symmetry-based classification of local pseudo-Hermitian systems and the corresponding domain walls

Yoshiki Fukusumi, Taishi Kawamoto·Nov 14, 2025

We study conformal field theories (CFTs) and their classifications from a modern perspective based on the abstract algebraic formalism of symmetries or conserved charges, known as symmetry topological field theories (SymTFTs). By studying the algebra...

hep-thcond-mat.str-elMathematical PhysicsQuantum Physics

Perfect displacement of a superconducting resonator via fast-forward scaling and its application to high-speed $R_{ZZ}$ gates in Kerr-cat qubits

Takaaki Aoki, Shumpei Masuda·Nov 14, 2025

We investigate the fast-forward and time-scaling properties of superconducting resonators under an off-resonant coherent drive. We propose a scheme for perfect displacement of a superconducting resonator by modulating the drive amplitude based on fas...

Quantum Physics

Unconditional and exponentially large violation of classicality

Marcello Benedetti, Gabriel Marin-Sanchez, Jordi Weggemans +2 more·Nov 14, 2025

Testing the predictions of quantum mechanics has been one of the main experimental endeavors for decades. Recent advancements in technology led to a number of demonstrations which test non-classicality via specific computational tasks. Limitations of...

Quantum Physics

Memory-Assisted Nonlocal Interferometer Towards Long-Baseline Telescopes

Bin Wang, Xi-Yu Luo, Bo-Feng Gao +12 more·Nov 14, 2025

Quantum networks and remote quantum entanglement serve as vital future quantum communication resources with broad applicability. A key direction lies in extending the baseline of optical interferometers to enhance angular resolution in interferometri...

Quantum Physicsphysics.optics
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