Papers
Live trends in quantum computing research, updated daily from arXiv.
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27,980
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Research Volume
13,222 papers in 12 months (+3% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Beyond Qubits: Multilevel Quantum Sensing for Dark Matter
Xiaolin Ma, Volodymyr Takhistov, Norikazu Mizuochi +1 more·Oct 22, 2025
Quantum sensing with qubits has advanced fundamental physics searches, but higher dimensional systems offer untapped potential. We present a universal qutrit framework that yields a sequence-independent fourfold increase in quantum Fisher information...
Single Sr Atoms in Optical Tweezer Arrays for Quantum Simulation
Veronica Giardini, Luca Guariento, Andrea Fantini +6 more·Oct 22, 2025
We report on the realization of a platform for trapping and manipulating individual $^{88}$Sr atoms in optical tweezers. A first cooling stage based on a blue shielded magneto-optical trap (MOT) operating on the $^1S_0$ -> $^1P_1$ transition at 461 n...
Passive quantum error correction of photon loss at breakeven
Shruti Shirol, Sean van Geldern, Hanzhe Xi +1 more·Oct 22, 2025
Physical qubits in a quantum computer are often represented by superposition states of single particles or excitations. Decay of the excitation itself is a fundamental error channel that is difficult to overcome via external drive or control techniqu...
Quantum Coherence in Superconducting Vortex States
Ameya Nambisan, Simon Günzler, Dennis Rieger +13 more·Oct 22, 2025
Abrikosov vortices, where the superconducting gap is completely suppressed in the core, are dissipative, semi-classical entities that impact applications from high-current-density wires to superconducting quantum devices. In contrast, we present evid...
Explicitly Quantum-parallel Computation by Displacements
Uchenna Chukwu, Mohammad-Ali Miri, Nicholas Chancellor·Oct 22, 2025
We introduce an encoding of information in the relative displacement or photon number of different optical modes. Since the loss rate to interference is insensitive to squeezing and many non-Gaussian fluctuations, such a space is relatively protected...
Classical theories of gravity produce entanglement
Joseph Aziz, Richard Howl·Oct 22, 2025
The unification of gravity and quantum mechanics remains one of the most profound open questions in science. With recent advances in quantum technology, an experimental idea first proposed by Richard Feynman is now regarded as a promising route to te...
Universal bound on the Lyapunov spectrum of quantum master equations
Paolo Muratore-Ginanneschi, Gen Kimura, Frederik vom Ende +1 more·Oct 22, 2025
The spectral properties of positive maps are pivotal for understanding the dynamics of quantum systems interacting with their environment. Furthermore, central problems in quantum information such as the characterization of entanglement can be reform...
Twisted superconducting quantum diodes: Towards anharmonicity and high fidelity
Han Zhong, Denis Kochan, Igor Zutic +1 more·Oct 22, 2025
As quantum technologies advance, a fundamental challenge is mitigating noise and backscattering in superconducting circuits to achieve scalable, high-fidelity operations. Conventional superconducting components lack directionality, causing energy los...
Quantum computation of molecular geometry via many-body nuclear spin echoes
C. Zhang, R. G. Cortiñas, A. H. Karamlou +320 more·Oct 22, 2025
Quantum-information-inspired experiments in nuclear magnetic resonance spectroscopy may yield a pathway towards determining molecular structure and properties that are otherwise challenging to learn. We measure out-of-time-ordered correlators (OTOCs)...
Sequential Semi-Device-Independent Quantum Randomness Certification
Carles Roch I Carceller, Hanwool Lee, Jonatan Bohr Brask +2 more·Oct 22, 2025
Quantum measurements under realistic conditions reveal only partial information about a system. Yet, by performing sequential measurements on the same system, additional information can be accessed. We investigate this problem in the context of semi-...
Quantum Field Theory Universality Criterion for Layered Programmable Decompositions
Javier Álvarez-Vizoso, David Barral·Oct 22, 2025
The decomposition of arbitrary unitary transformations into sequences of simpler, physically realizable operations is a foundational problem in quantum information science, quantum control, and linear optics. We establish a 1D Quantum Field Theory mo...
Decoherence of a dissipative Brownian charged magneto-anharmonic oscillator: an information theoretic approach
Suraka Bhattacharjee, Koushik Mandal, Supurna Sinha·Oct 22, 2025
We study the decoherence of an anisotropic anharmonic oscillator in a magnetic field, coupled to a bath of harmonic oscillators at high and low temperatures. We solve the anharmonic oscillator problem using perturbative techniques and derive the non-...
Generalised Pinching Inequality
Andreas Winter·Oct 21, 2025
Hayashi's Pinching Inequality, which establishes a matrix inequality between a semidefinite matrix and a multiple of its "pinched" version via a projective measurement, has found many applications in quantum information theory and beyond. Here, we sh...
Noise-tolerant tripartite entanglement and quantum coherence via saturation effects
P. Djorwé, J. -X. Peng, S. Adbel-Khalek +1 more·Oct 21, 2025
Engineering quantum resources that survive against environmental temperature is of great interest for modern quantum technologies. However, it is a tricky task to synthetize such quantum states. Here, we propose a scheme to generate highly resilient ...
On the stabilizer complexity of Hawking radiation
Ritam Basu, Onkar Parrikar, Suprakash Paul +1 more·Oct 21, 2025
We study the complexity of Hawking radiation for an evaporating black hole from the perspective of the stabilizer theory of quantum computation. Specifically, we calculate Wigner negativity -- a magic monotone which can be interpreted as a measure of...
Every Benchmark All at Once
Ana Silva, Eliska Greplova·Oct 21, 2025
As quantum technology matures, the efficient benchmarking of quantum devices remains a key challenge. Although sample-efficient, information-theoretic benchmarking techniques have recently been proposed, there is still a gap in adapting these techniq...
Information geometry of nonmonotonic quantum natural gradient
Hideyuki Miyahara·Oct 21, 2025
Natural gradient is an advanced optimization method based on information geometry, where the Fisher metric plays a crucial role. Its quantum counterpart, known as quantum natural gradient (QNG), employs the symmetric logarithmic derivative (SLD) metr...
Virus Spreading in Quantum Networks
Junpeng Hou, Mark M. Seidel, Chuanwei Zhang·Oct 20, 2025
Recent advances in quantum communication have enabled long-distance secure information transfer through quantum channels, giving rise to quantum networks with unique physical and statistical properties. However, as in classical networks, the propagat...
QINNs: Quantum-Informed Neural Networks
Aritra Bal, Markus Klute, Benedikt Maier +3 more·Oct 20, 2025
Classical deep neural networks can learn rich multi-particle correlations in collider data, but their inductive biases are rarely anchored in physics structure. We propose quantum-informed neural networks (QINNs), a general framework that brings quan...
Phase estimation via photon subtraction at the output of the hybrid interferometer
Qisi Zhou, Tao Jiang, Qingqian Kang +4 more·Oct 20, 2025
The hybrid interferometer integrating an optical parametric amplifier and a beam splitter has the potential to outperform the SU(1,1) interferometer. However, photon loss remains a critical limitation for practical implementation. To address this cha...