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 18
Gaussian Quantum Integrated Sensing and Communication
We consider a quantum integrated sensing and communication problem over an optical link in which a low-power transmitter simultaneously communicates with a receiver and identifies the range of a…Runtime Compilation for Quantum Circuits with PQF-Enabled $R_z$ Synthesis
In Fault-Tolerant Quantum Computing (FTQC) using surface codes, reducing $T$-count is critical for efficient computation due to the high cost of $T$-state distillation.A GPU-Accelerated and Geometry-Aware Quantum-Classical Framework for Optimized PES Scans with CUDA-Q
Hybrid quantum-classical workloads, particularly Potential Energy Surface (PES) scans in quantum chemistry using batched VQE and QAOA, involve many structurally similar Hamiltonians differing only…Boson sampling is fragile to loss
Boson sampling experiments aim to demonstrate quantum computational advantage with increasing numbers of interfering photons.Purity maxima, absolute separability, and spectral volumes of absolutely PPT states
For $m\otimes n$ systems with $n\ge m\ge3$, we determine the exact maximum purity of absolutely positive partial transpose (APPT) states and the unique maximizing ordered spectrum when $n\ge2m^2-4$…Superradiance fingerprints of moiré exciton-biexciton condensates: path-entangled biphoton vs. supercurrent-enabled one-photon channel
Hybrid moiré excitons form a dense array of electrically tunable single-photon emitters, entailing cooperative optical responses with intriguing consequences.Near-Optimal Learning of Quantum Many-Body Systems from Gibbs and Thermal Metastable States via the Stationarity Test
We study the problem of learning a finite-range quantum Hamiltonian on an $n$-qubit $D$-dimensional lattice from copies of its Gibbs states at a known inverse temperature $β$ or its thermal…From Ghost SICs to SIC-POVMs: A Galois Reduction of Zauner's Conjecture
Symmetric informationally complete positive operator-valued measures (SIC-POVMs, or SICs) are optimal minimal measurements for quantum state tomography.Access Resources and Stability of Error-Correction Capabilities in Continuous Strategic Codes
Continuous quantum error correction depends on which parts of a measurement record remain available to the controller at recovery.Bounds and sufficient conditions in quantum Zeno effect
When a quantum system undergoes a series of repeated measurements during its time evolution to check whether it remains in the initial state, the resulting state lifetime can decrease (the quantum…Decoherence suppression in quantum dense coding
By harnessing entanglement to transmit information beyond the limits of classical communication, quantum dense coding serves as a key component in various quantum technologies.Mitigating sloppiness with intermediate controls in sequential multiparameter spin interferometry
Multiparameter quantum sensing requires different parameters to produce distinguishable probe responses while allowing their information to be extracted simultaneously.Quantum-enhanced multiphase estimation with spin-1 Bose-Einstein condensates
We investigate quantum-enhanced two-phase estimation in a spin-$1$ Bose-Einstein condensate, where spin-exchange collisions generate a spin-nematic squeezed state in the $m_F=\pm1$ modes.An Observable-Algebra Approach to Quantum Coherence in Anyonic Systems
Physical restrictions on operations can make quantum coherence inaccessible.Quantum Lower Bounds for Collision Problems
We establish tight lower bounds on the adaptive and non-adaptive quantum query complexities of Promised $k$-to-one Finding on an exactly $k$-to-one input string $x\in\mathbb Z_q^n$, for every fixed…Quantum Recovery from Black-Hole Radiation Beyond the Emission Yield
A proposed resolution of the black-hole information paradox must explain which information an outside observer can recover from escaping radiation\cite{Hawking,Page,Hayden,Almheiri}.Long-term yields of short-rate models as Feynman-Kac ground states: a variational quantum eigensolver with single-setting energy estimation on two NISQ platforms
We show that the long-term yield of a short-rate model is the ground-state energy of a Schrodinger operator obtained from the Feynman-Kac bond-pricing equation, so that it can be computed by a…Tensor Contraction with ZX Calculus, a Graph-Theoretic Approach
Tensors are higher dimensional generalisations of vectors and matrices.Experimental demonstration of phase-conjugated twin-wave coherent reception over 100 km with injection locking assisted phase stabilization
Recovering complex optical signals with high sensitivity is central to coherent communication and sensing.Quantum Path Finder: Navigating Constraint Space via Non-Abelian Gauge Dynamics
Quantum algorithms are commonly designed within the circuit paradigm or through adiabatic evolution.