Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,638 papers in 12 months (-16% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Generation and Teleportation of three and four particle W state
Seyed Amir hossein Mehrinezhad Chobari, Hossein Aghababa, Mohammadreza Kolahdouz·Jan 30, 2025
In this paper, we introduced circuits for three- and four-particle quantum systems to generate W states with any arbitrary coefficients and phases. Subsequently, each qubit was transmitted separately through a four-qubit entangled channel. Before tra...
Limits of Information Flow Between Classically Interacting Particles
Miles D. Miller-Dickson, Christopher Rose·Jan 30, 2025
Pinning down a precise understanding of information flow within physical interactions remains a central concern to fields like stochastic thermodynamics and quantum information science. In both spheres a careful accounting of bits (or qubits) enables...
Hierarchical generation and design of quantum codes for resource-efficient loss-tolerant quantum communications
Franceso Cesa, Tommaso Feri, A. Bassi·Jan 30, 2025
We develop novel protocols for generating loss-tolerant quantum codes; these are central for safeguarding information against qubit losses, with most crucial applications in quantum communications. Contrary to current proposals, our method enables to...
Real-time adaptation of quantum noise channel estimates
L. Daguerre, M. Sarovar·Jan 30, 2025
Estimates of noise channels for quantum gates are required for most error mitigation techniques and are desirable for informing quantum error correction decoders. These estimates can be obtained by resource-intensive off-line characterization techniq...
Enhancing Quantum Expectation Values Via Exponential Error Suppression and CVaR Optimization
Touheed Anwar Atif, Reuben Tate, S. Eidenbenz·Jan 30, 2025
Precise quantum expectation values are crucial for quantum algorithm development, but noise in real-world systems can degrade these estimations. While quantum error correction is resource-intensive, error mitigation strategies offer a practical alter...
Solving Drone Routing Problems with Quantum Computing: A Hybrid Approach Combining Quantum Annealing and Gate-Based Paradigms
E. Osaba, Pablo Miranda-Rodríguez, Andreas Oikonomakis +3 more·Jan 30, 2025
This paper presents a novel hybrid approach to solving real-world drone routing problems by leveraging the capabilities of quantum computing. The proposed method, coined Quantum for Drone Routing (Q4DR), integrates the two most prominent paradigms in...
QNN-QRL: Quantum Neural Network Integrated with Quantum Reinforcement Learning for Quantum Key Distribution
B. Behera, S. Al-kuwari, Ahmed Farouk·Jan 30, 2025
Quantum key distribution (QKD) has emerged as a critical component of secure communication in the quantum era, ensuring information-theoretic security. Despite its potential, there are issues in optimizing key generation rates, enhancing security, an...
Direct Implementation of High-Fidelity Three-Qubit Gates for Superconducting Processor with Tunable Couplers.
Haochen Liu, Bing-Jie Chen, Jiacheng Zhang +18 more·Jan 30, 2025
Three-qubit gates can be constructed using combinations of single-qubit and two-qubit gates, making their independent realization unnecessary. However, direct implementation of three-qubit gates reduces the depth of quantum circuits, streamlines quan...
Quantum phase transitions between symmetry-enriched fracton phases
Julian Boesl, Yu-Jie Liu, Wen-Tao Xu +2 more·Jan 30, 2025
Topologically ordered phases exhibit further complexity in the presence of global symmetries: Their anyonic excitations may exhibit different transformation patterns under these symmetries, leading to a classification in terms of symmetry-enriched to...
Engineering of Anyons on M5-Probes via Flux Quantization
Hisham Sati, Urs Schreiber·Jan 29, 2025
These extended lecture notes survey a novel derivation of anyonic topological order (as seen in fractional quantum Hall systems) on single magnetized M5-branes probing Seifert orbi-singularities ("geometric engineering" of anyons), which we motivate ...
Readout-induced leakage of the fluxonium qubit
Aayam Bista, Matthew Thibodeau, Ke Nie +3 more·Jan 29, 2025
Dispersive readout is widely used to perform high-fidelity measurement of superconducting qubits. Much work has been focused on the qubit readout fidelity, which depends on the achievable signal-to-noise ratio and the qubit relaxation time. As groups...
Exponential advantage in continuous-variable quantum state learning
Eugen Coroi, Changhun Oh·Jan 29, 2025
We consider the task of learning quantum states in bosonic continuous-variable (CV) systems. We present an experimentally feasible protocol that uses entangled measurements and reflected states to efficiently learn, up to sign, the characteristic fun...
Disappearance of measurement-induced phase transition in a quantum spin system for large sizes
Paranjoy Chaki, Protyush Nandi, Ujjwal Sen +1 more·Jan 29, 2025
Measurement-induced phase transitions are often studied in random quantum circuits, with local measurements performed with a certain probability. We present here a model where a global measurement is performed with certainty at every time-step of the...
Linear quantum coupler for clean bosonic control
Aniket Maiti, John W. O. Garmon, Yao Lu +3 more·Jan 29, 2025
Quantum computing with superconducting circuits relies on high-fidelity driven nonlinear processes. An ideal quantum nonlinearity would selectively activate desired coherent processes at high strength, without activating parasitic mixing products or ...
Chiral cavity control of superconducting diode-like nonlinearities
Arpit Arora, P. Narang·Jan 29, 2025
Time reversal symmetry breaking is an important piece in controlling nonreciprocal responses which are crucial in advancing the utility of quantum materials in device operations. Here, we propose cavity control of superconducting diode-like nonrecipr...
A tri-linear quantum dot architecture for semiconductor spin qubits
R. Li, V. Levajac, C. Godfrin +10 more·Jan 29, 2025
Semiconductor quantum dot spin qubits hold significant potential for scaling to millions of qubits for practical quantum computing applications, as their structure highly resembles the structure of conventional transistors. Since classical semiconduc...
Entropic witness for quantum memory in open system dynamics
Charlotte Backer, K. Beyer, W. Strunz·Jan 29, 2025
The dynamics of open quantum system are often modeled by non-Markovian processes that account for memory effects arising from interactions with the environment. It is well-known that the memory provided by the environment can be classical or quantum ...
Optimizing Superconducting Qubit Performance: A Theoretical Framework for Design, Analysis, and Calibration
Sirshi S Ram, Muralikrishna Molli, V. Katukuri +1 more·Jan 29, 2025
Designing a qubit architecture is one of the most critical challenges in achieving scalable and fault-tolerant quantum computing as the performance of a quantum computer is heavily dependent on the coherence times, connectivity and low noise environm...
Large-scale stochastic simulation of open quantum systems
Aaron Sander, Maximilian Fröhlich, Martin Eigel +6 more·Jan 29, 2025
Understanding interactions between quantum systems and their environments is crucial for developing stable quantum technologies and accurate physical models. Yet, simulating open quantum systems with non-unitary dynamics remains computationally deman...
The quantromon: A qubit-resonator system with orthogonal qubit and readout modes
K. Salunkhe, S. Kundu, Srijita Das +3 more·Jan 29, 2025
The measurement of a superconducting qubit is implemented by coupling it to a resonator. The common choice is transverse coupling, which, in the dispersive approximation, introduces an interaction term that enables the measurement. This cross-Kerr te...