Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,007 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
One Gate Scheme to Rule Them All: Introducing a Complex Yet Reduced Instruction Set for Quantum Computing
Jianxin Chen, D. Ding, Weiyuan Gong +2 more·Dec 9, 2023
The design and architecture of a quantum instruction set are paramount to the performance of a quantum computer. This work introduces a gate scheme for qubits with XX + YY coupling that directly and efficiently realizes any two-qubit gate up to singl...
Enhancing the electron pair approximation with measurements on trapped-ion quantum computers
Luning Zhao, Q. Wang, Joshua J. Goings +5 more·Dec 9, 2023
The electron pair approximation offers an efficient variational quantum eigensolver (VQE) approach for chemistry simulations on quantum computers. With the number of entangling gates scaling quadratically with system size and a constant measurement o...
SUPER and femtosecond spin-conserving coherent excitation of a tin-vacancy color center in diamond
Cem Güney Torun, Mustafa Gökçe, Thomas K. Bracht +11 more·Dec 8, 2023
The coherent excitation of an optically active spin system is one of the key elements in the engineering of a spin-photon interface. Using the novel SUPER scheme, we coherently control the main optical transition of a tin-vacancy color center in diam...
Resource-Efficient Quantum Circuits for Molecular Simulations: A Case Study of Umbrella Inversion in Ammonia
R. NirmalM., S. Yamijala, Kalpak Ghosh +2 more·Dec 7, 2023
We conducted a thorough evaluation of various state-of-the-art strategies to prepare the ground state wavefunction of a system on a quantum computer, specifically within the framework of variational quantum eigensolver (VQE). Despite the advantages o...
Flying Spin Qubits in Quantum Dot Arrays Driven by Spin-Orbit Interaction
D. Fern'andez-Fern'andez, Y. Ban, G. Platero·Dec 7, 2023
Quantum information transfer is fundamental for scalable quantum computing in any potential platform and architecture. Hole spin qubits, owing to their intrinsic spin-orbit interaction (SOI), promise fast quantum operations which are fundamental for ...
Scalable narrow linewidth high power laser for barium ion optical qubits.
Morteza Ahmadi, T. Dutta, M. Mukherjee·Dec 6, 2023
The linewidth of a laser plays a pivotal role in ensuring the high fidelity of ion trap quantum processors and optical clocks. As quantum computing endeavors scale up in qubit number, the demand for higher laser power with ultra-narrow linewidth beco...
Logical quantum processor based on reconfigurable atom arrays
D. Bluvstein, S. Evered, A. Geim +19 more·Dec 6, 2023
Suppressing errors is the central challenge for useful quantum computing1, requiring quantum error correction (QEC)2–6 for large-scale processing. However, the overhead in the realization of error-corrected ‘logical’ qubits, in which information is e...
Qubit-environment entanglement in time-dependent pure dephasing
Malgorzata Strzalka, Radim Filip, K. Roszak·Dec 5, 2023
We show that the methods for quantification of system-environment entanglement that were recently developed for interactions that lead to pure decoherence of the system can be straightforwardly generalized to time-dependent Hamiltonians of the same t...
From Qubits to Opinions: Operator and Error Syndrome Measurement in Quantum-Inspired Social Simulations on Transversal Gates
Yasuko Kawahata·Dec 4, 2023
This paper delves into the history and integration of quantum theory into areas such as opinion dynamics, decision theory, and game theory, offering a novel framework for social simulations. It introduces a quantum perspective for analyzing informati...
QPMeL - Quantum-Aware Classically-Trained Embeddings via Projective Metric Learning
Vinayak Sharma, Ashish Padhy, Sourav Behera +3 more·Dec 4, 2023
Deep metric learning has recently shown extremely promising results in the classical data domain, creating well-separated feature spaces. This idea was also adapted to quantum computers via Quantum Metric Learning(QMeL). QMeL consists of a 2-step pro...
A Graphical Rule Book for Clifford Manipulations of Stabilizer States
A. Patil, Saikat Guha·Dec 4, 2023
Stabilizer states, along with Clifford manipulations (unitary transformations and measurements) thereof—despite being efficiently simulable on a classical computer—are an important tool in quantum information processing, with applications to quantum ...
Using non-convex optimization in quantum process tomography: Factored gradient descent is tough to beat
David Quiroga, Anastasios Kyrillidis·Dec 3, 2023
We propose a non-convex optimization algorithm, based on the Burer-Monteiro (BM) factorization, for the quantum process tomography problem, in order to estimate a low-rank process matrix χ for near-unitary quantum gates. In this work, we compare our ...
Stochastic Model of Qudit Measurement for Superconducting Quantum Information Processing
Kangdi Yu·Dec 3, 2023
The field of superconducting quantum computing, based on Josephson junctions, has recently seen remarkable strides in scaling the number of logical qubits. In particular, the fidelities of one- and two-qubit gates are close to the breakeven point wit...
Co-Designed Superconducting Architecture for Lattice Surgery of Surface Codes with Quantum Interface Routing Card
Charles Guinn, S. Stein, Esin Tureci +5 more·Dec 2, 2023
Facilitating the ability to achieve logical qubit error rates below physical qubit error rates, error correction is anticipated to play an important role in scaling quantum computers. While many algorithms require millions of physical qubits to be ex...
Qubits, entangled states, and quantum gates realized on a set of classical pendulums
A. Nenashev, F. Gebhard, K. Meerholz +1 more·Dec 1, 2023
Here we show that the concepts behind such terms as entanglement, qubits, quantum gates, quantum error corrections, unitary time evolution etc., which are usually ascribed to quantum systems, can be adequately realized on a set of coupled classical p...
Quantum Circuit for Random Forest Prediction
Liliya Safina, K. Khadiev, I. Zinnatullin +1 more·Dec 1, 2023
In this work, we present a quantum circuit for a binary classification prediction algorithm using a random forest model. The quantum prediction algorithm is presented in our previous works. We construct a circuit and implement it using qiskit tools (...
Pancreatic Cancer Data Classification with Quantum Machine Learning
Mark Levin·Nov 30, 2023
Quantum algorithms for unstructured search problems rely on the preparation of a uniform superposition, traditionally achieved through Hadamard gates. However, this incidentally creates an auxiliary search space consisting of nonsensical answers that...
CAMEL: Physically Inspired Crosstalk-Aware Mapping and Gate Scheduling for Frequency-Tunable Quantum Chips
Bingkun Lu, Peng Wang, Zhao-Yun Chen +5 more·Nov 30, 2023
Crosstalk poses a significant challenge in quantum computing, particularly when quantum gates are executed in parallel, as qubit frequency resonance can lead to residual coupling and reduced gate fidelity. Current solutions struggle to mitigate both ...
Fault-tolerant quantum memory using low-depth random circuit codes
Jon Nelson, Gregory Bentsen, S. Flammia +1 more·Nov 29, 2023
Low-depth random circuit codes possess many desirable properties for quantum error correction but have so far only been analyzed in the code capacity setting where it is assumed that encoding gates and syndrome measurements are noiseless. In this wor...
Optimized topological quantum compilation of three-qubit controlled gates in the Fibonacci anyon model: A controlled-injection approach
Abdellah Tounsi, N. Belaloui, Mohamed Messaoud Louamri +2 more·Nov 29, 2023
A method, termed controlled injection, is proposed for compiling three-qubit controlled gates within the non-Abelian Fibonacci anyon model. Building on single-qubit compilation techniques with three Fibonacci anyons, the approach showcases enhanced a...