Quantum Physics · Physics & Astronomy
Quantum Physics
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3,630 papers, from 4 September 2026 to 5 November 2026: 3,630 arXiv preprints.
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Newest papers, page 175
Complexity of Nuclear States for 48Ca
In complex systems theory, there are different ways to describe a system in terms of information, such as emergence (Shannon entropy), self-organization, and com- plexity.Free semigroup non-relativistic phase space states quantisation
Quantisation is considered as an action of classical point operators on field states at the Planck scale of the phase space.Equivalence of maximal and generic reachability for non-universal Variational Quantum Circuits
Employing problem-specific non-universal Variational Quantum Circuits aligned with a suitable state preparation has become a standard approach to counter the difficulty in training universal ansätze.Thermodynamic Uncertainty Relations in Chaotic Andreev Billiards
We investigate how particle-hole symmetry, quantum interference, and tunnel barriers shape thermodynamic uncertainty relations in chaotic Andreev billiards.Programmable Coherent Memory Kernels for Quantum Reservoir Computing in Waveguide QED
Reservoir computing requires not only long memory, but also memory distributed over the timescales relevant to a given task.Investigation of Widefield NV-Center Magnetic Imaging for Non-Destructive Materials Testing
Due to progressing miniaturization, material fatigue is expected to gain importance on microscopic scales.Resonantly Enhanced Phonon Transport by Magnon Pumping in a Ferromagnetic/Piezoelectric Bilayer
We report the first experimental observation of resonantly enhanced propagating phonon transport induced by magnon pumping in a ferromagnetic/piezoelectric bilayer.Quantum-Enhanced Sampling of Schrödinger Bridges
We consider the dynamic Schrödinger bridge problem on a finite state space and exploit its Markov structure to decompose the problem into an endpoint coupling and a collection of conditional Markov…Dual Boundary Condition Inference: A Two-Boundary Product Rule and Its Implications
Many inference problems are constrained from two sides: forward information and a second constraint on outcomes.Efficient Learning of Clifford-Scrambled Product States
Clifford circuits acting on product magic states provide a compact ansatz exhibiting extensive magic, volume-law entanglement, and even classically hard sampling under standard complexity assumptions.Quantum Soundness of a Total-Degree Line-versus-Point Test
We prove quantum soundness of the total-degree diagonal line-vs-point test using the individual-degree soundness theorem of Ji, Natarajan, Vidick, Wright, and Yuen.A Green-function unification of weak interactions with environmental dressing
Weak, non-covalent interactions such as electrostatics, induction, and dispersion are commonly treated as distinct physical mechanisms, often using separate models and approximations.Global zero-excitation state preparation through subsystem cooling
Preparing interacting quantum systems in low-energy or ground states is a fundamental task in quantum simulation and quantum information processing.Trace-distance-based complementarity relations in a multipath interferometer
The complementarity relations in an interferometer reflect an important phenomenon in quantum mechanics: wave-particle duality.Pauli-resolved virtual distillation
Learning the full Pauli profile of the virtually distilled quantum state $ρ^m/\text{tr}(ρ^m)$ has so far required exponentially many copies of $ρ$.Sparse and weak-measurement certification of graph-edge entanglement in PXP scar wavepackets
An imperfect many-body revival does not by itself certify the entanglement of the returning state.Reconstructing the phonon distribution of trapped ions out of the Lamb-Dicke regime
Characterizing the phonon distribution of trapped-ion motional states is essential for many applications in quantum information processing, but existing methods become ill-conditioned beyond the…Nondemolition filtering of an embedded cluster-state scar under continuous local monitoring
Identifying a low-entanglement eigenstate inside a many-body spectrum and preserving it during measurement are distinct tasks.A complete characterization of eventually entanglement breaking unital quantum channels
We obtain a complete characterization of eventually entanglement breaking (EEB) unital channels in terms of some simple commutation properties of their eigenvectors.No violation on a generalisation of Leggett-Garg inequality and Bell-CHSH inequality with extended probability
A generalisation of the Leggett-Garg inequality (LGI) and the Bell-CHSH inequality is proposed in this work, by replacing a classical probability notion with an extended probability notion.