Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Quantum Primitive for Output-Hiding Function Sharing: Strategic Settings
Olivia R. Hartzell·Jun 27, 2026
Applications of the proposed primitive: Quantum Primitive for Output-Hiding Function Sharing are discussed for environments in which the parties may have strategic considerations over the generated function value, and therefore may not be mutually tr...
Gregory Nested Picard Iteration Schemes for Open Quantum Systems Governed by the Lindblad Equation
Jiuhua Hu, Daniel Appelo, Yingda Cheng·Jun 27, 2026
Numerical simulation of quantum computing hardware and open quantum systems governed by the Lindblad equation is challenging due to the high dimensionality of the density matrix and the need to preserve fundamental physical properties. In our previou...
Quantum Primitive for Output-Hiding Function Sharing: QKD and Joint Computation Applications
Olivia R. Hartzell·Jun 27, 2026
Applications of the proposed primitive: Quantum Primitive for Output-Hiding Function Sharing, are discussed for secure quantum communications and computation protocols. In particular, QKD applications provide notable enhanced security and efficiency ...
Tracking Entanglement Transfer: Emergence of Thermodynamics from Quantum Information
Debraj Debata, Abhirup Mukherjee, Siddhartha Lal·Jun 27, 2026
We study entanglement transfer in a minimal model of two qubits that are coupled with one another through an antiferromagnetic Heisenberg exchange ($\tilde{J}$), and where one of them is additionally coupled to a fermionic environment through another...
A High-Performance Pauli-Algebra Framework for Large-Scale Quantum Simulations
Xiaopeng Li, Zhijie Sun, Yi Fan +3 more·Jun 27, 2026
Efficient manipulation of Pauli-algebraic objects is a key bottleneck in the classical emulation and benchmarking of quantum algorithms for chemistry and many-body physics. This bottleneck appears in Hamiltonian construction, variational ansatz prepa...
Optically Switched Phonon Superradiance of Surface Acoustic Wave in Diamond
Zhiwei Chen, Changyong Lei, Jie Ren·Jun 27, 2026
Surface acoustic wave (SAW) phonon coupling with nitrogen-vacancy (NV) center spins in diamond offers a promising platform for on-chip quantum phononic manipulations. Although an ensemble of NV centers coupled to a common SAW phonon mode enables supe...
Unit-Circle Moment Closure
Yu Su, Yao Wang·Jun 27, 2026
Moment closure is a central problem in reduced descriptions of stochastic, kinetic, and quantum dynamics, where equations for low-order observables are coupled to an unresolved hierarchy of higher-order moments. Existing closures usually impose a pre...
Kinetics of electron-phonon scattering in silicon resolved by Rydberg transitions of donors
Nils Dessmann, Aidan G. McConnell, Sergey G. Pavlov +6 more·Jun 27, 2026
Rydberg states of atoms in vacuum are now well recognized as a resource for quantum technologies. Donors in semiconductors also display analogous states, which have been proposed for similar applications. While they benefit from permanent locations i...
Quantum Variational Approaches to the Maximum Independent Set Problem at Utility Scale
Kalyan Dasgupta, Sumanta Mukherjee, Dhriti Verma +4 more·Jun 27, 2026
We study variational quantum algorithms for the Maximum Independent Set (MIS) problem on benchmark graphs of 64, 99, and 180 vertices. The Variational Quantum Eigensolver (VQE) and Quantum Approximate Optimization Algorithm (QAOA) are compared across...
Interplay of Electrode Coupling Engineering, Quasiperiodicity, and Magnetic Flux in Quantum Transport through a Su-Schrieffer-Heeger Ring
Sridhar, Souvik Roy, Malay Bandyopadhyay·Jun 27, 2026
We reveal that engineering electrode-coupling configurations can fundamentally reshape coherent transport phenomena in quasiperiodic quantum systems. Leveraging nonequilibrium Green's function theory, we systematically analyze charge and heat transpo...
A unified framework for determining transition dipole polarization in solid-state spin defects
Gaia Da Prato, Yong Yu, Wolfgang Tittel +1 more·Jun 27, 2026
Spin-photon interfaces based on solid-state defects are key building blocks for scalable quantum networks and hybrid quantum platforms. Optimizing light-matter coupling in these systems requires precise knowledge of the optical transition dipole pola...
Properties of 2D Electron or Hole Gases at Tailored s-Si/SiGe Interfaces: A First-Principles Investigation
Garima Ahuja, Farha S, Tanuja Shridhar Joshi +2 more·Jun 27, 2026
We have performed first-principles hybrid density functional theory calculations to study the formation and properties of two-dimensional electron or hole gases (2DEG or 2DHG) at s-Si/SiGe interfaces. For small Ge concentrations $x < 0.25$, we find a...
Bipartite Gaussian Boson Sampling for Hamiltonian Cycles in Directed Graphs
Miaomiao Yu, Jingyi Lv, Yan Wang +2 more·Jun 27, 2026
Bipartite Gaussian boson sampling (BipartiteGBS) produces output probabilities governed by squared permanents of submatrices of arbitrary complex matrices, matching the nonsymmetric structure of directed graphs. Most GBS-based graph algorithms, howev...
Linear and nonlinear optical torque in multi-level atomic systems driven by counter-rotating orbital angular momentum fields
Dharma P. Permana, Mažena Mackoit Sinkevičienė, Viačeslav Kudriašov +3 more·Jun 27, 2026
We investigate the generation of optical torque in coherently prepared multi-level atomic media driven by a vector vortex beam composed of two counter-rotating components carrying opposite orbital angular momenta, $+l\hbar$ and $-l\hbar$. We consider...
SHIFT: Dynamic Compute Relocation Framework for Communication-Aware Chiplet-Based Systems
Arvin Delavari, Leonid Popryho, Sneha Swaroopa +3 more·Jun 27, 2026
The increasing communication complexity of large-scale heterogeneous systems has motivated runtime methodologies for communication-aware workload placement and routing optimization. These communication limitations are addressed in this paper by propo...
Enhancing Initial-State Sensitivity through Time-Dependent Hamiltonian Readout in Ising Spin Chains
Hoang Van Do·Jun 26, 2026
Local observables can lose sensitivity to an initial state during strongly interacting many-body evolution even though the global dynamics remain unitary. We show that this sensitivity can be enhanced through a time-dependent Hamiltonian readout. Two...
Borrowed Identities: Malleable Distillation Factories and a Unified Numerical Search
Shraddha Singh, Craig Gidney, Cody Jones·Jun 26, 2026
Magic-state distillation is one of the leading overheads in fault-tolerant quantum computation. Existing methods for finding distillation factories require a transversal gate to act correctly on the entire codespace, a constraint that limits both gen...
Diameter truncated operator evolution
Tom Holden-Dye, Max Marvell, Joel Mills +2 more·Jun 26, 2026
We present a method for simulating operator dynamics in out-of-equilibrium quantum systems. Due to the rapid growth of complexity in these systems, this is typically speaking an intractable task. However, exceptional progress has been made in recent ...
Composing Quantum Instruments
Robert I. Booth, Dominik Leichtle, Alex Rice +1 more·Jun 26, 2026
We study the composition of classically-controlled quantum instruments--the natural quantum analogue of Markov kernels. Classically, Markov kernels compose by integrating one kernel against another. Defining this composition for quantum instruments w...
Revealing precision bounds on neutrino oscillation parameters with quantum estimation theory
Jihong Huang, Tommy Ohlsson, Sampsa Vihonen +1 more·Jun 26, 2026
Quantum estimation theory provides ultimate precision bounds on parameter estimation, independent of experimental setups. In this article, we apply this theoretical framework to neutrino oscillations, aiming to clarify some subtle issues and reveal t...