Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Deterministic entangling gates with nonlinear quantum photonic interferometers
Francesco Scala, D. Nigro, D. Gerace·Jun 8, 2023
The single-photon quantum computing paradigm currently relies on the multi-port interference in linear optical devices, which is intrinsically based on probabilistic measurements outcome, and thus non-deterministic. Devising a fully deterministic, un...
Quantum Wasserstein distance between unitary operations
Xinyu Qiu, Lin Chen, Lijun Zhao·Jun 8, 2023
Quantifying the effect of noise on unitary operations is an essential task in quantum information processing. We propose the quantum Wasserstein distance between unitary operations, which shows an explanation for quantum circuit complexity and charac...
Compiling Quantum Circuits for Dynamically Field-Programmable Neutral Atoms Array Processors
Daniel Bochen Tan, D. Bluvstein, M. Lukin +1 more·Jun 6, 2023
Dynamically field-programmable qubit arrays (DPQA) have recently emerged as a promising platform for quantum information processing. In DPQA, atomic qubits are selectively loaded into arrays of optical traps that can be reconfigured during the comput...
Feasibility of performing quantum chemistry calculations on quantum computers
Thibaud Louvet, Thomas Ayral, Xavier Waintal·Jun 5, 2023
Quantum chemistry is envisioned as an early and disruptive application for quantum computers. Yet, closer scrutiny of the proposed algorithms shows that there are considerable difficulties along the way. Here, we propose two criteria for evaluating t...
A Logarithmic Depth Quantum Carry-Lookahead Modulo (2n - 1) Adder
Bhaskar Gaur, Edgard Muñoz-Coreas, H. Thapliyal·Jun 5, 2023
Quantum Computing is making significant advancements toward creating machines capable of implementing quantum algorithms in various fields, such as quantum cryptography, quantum image processing, and optimization. The development of quantum arithmeti...
Noise-Resilient and Reduced Depth Approximate Adders for NISQ Quantum Computing
Bhaskar Gaur, T. Humble, H. Thapliyal·Jun 5, 2023
The "Noisy intermediate-scale quantum" NISQ machine era primarily focuses on mitigating noise, controlling errors, and executing high-fidelity operations, hence requiring shallow circuit depth and noise robustness. Approximate computing is a novel co...
Quantum Circuit Optimization of Arithmetic circuits using ZX Calculus
Aravind Joshi, Akshara Kairali, Renju Raju +4 more·Jun 4, 2023
Quantum computing is an emerging technology in which quantum mechanical properties are suitably utilized to perform certain compute-intensive operations faster than classical computers. Quantum algorithms are designed as a combination of quantum circ...
A Reference Architecture for Quantum Computing as a Service
Aakash Ahmad, A. B. Altamimi, J. Aqib·Jun 3, 2023
Quantum computers (QCs) aim to disrupt the status-quo of computing -- replacing traditional systems and platforms that are driven by digital circuits and modular software -- with hardware and software that operates on the principle of quantum mechani...
Quantum annealing-based computed tomography using variational approach for a real-number image reconstruction
A. Haga·Jun 3, 2023
Objective. Despite recent advancements in quantum computing, the limited number of available qubits has hindered progress in CT reconstruction. This study investigates the feasibility of utilizing quantum annealing-based computed tomography (QACT) wi...
A general-purpose single-photon-based quantum computing platform
N. Maring, A. Fyrillas, M. Pont +24 more·Jun 1, 2023
Quantum computing aims at exploiting quantum phenomena to efficiently perform computations that are unfeasible even for the most powerful classical supercomputers. Among the promising technological approaches, photonic quantum computing offers the ad...
Shallow Depth Factoring Based on Quantum Feasibility Labeling and Variational Quantum Search
Imran Khan Tutul, Sara Karimi, Junpeng Zhan·May 31, 2023
Large integer factorization is a prominent research challenge, particularly in the context of quantum computing. This holds significant importance, especially in information security that relies on public key cryptosystems. The classical computation ...
Effects of noise on performance of Bernstein-Vazirani algorithm
Archi Gupta, Priyarshini Ghosh, Kornikar Sen +1 more·May 31, 2023
The Bernstein-Vazirani (BV) algorithm offers exceptional accuracy in finding the hidden bit string of a function. We explore how the algorithm performs in real-world situations where noise can potentially interfere with its performance. In order to a...
Distributing Quantum Circuits Using Teleportations
Ranjani G. Sundaram, Himanshu Gupta·May 31, 2023
Scalability is currently one of the most sought-after objectives in the field of quantum computing. Distributing a quantum circuit across a quantum network is one way to facilitate large computations using current quantum computers. In this paper, we...
Efficient Quantum Algorithms for Stabilizer Entropies.
T. Haug, Soo-Woong Lee, M. S. Kim·May 30, 2023
Stabilizer entropies (SEs) are measures of nonstabilizerness or "magic" that quantify the degree to which a state is described by stabilizers. SEs are especially interesting due to their connections to scrambling, localization and property testing. H...
Scalable evaluation of incoherent infidelity in quantum devices
Jader P. Santos, Ivan Henao, R. Uzdin·May 30, 2023
Quantum processors can already execute tasks beyond the reach of classical simulation, albeit for artificial problems. At this point, it is essential to design error metrics that test the experimental accuracy of quantum algorithms with potential for...
Variational Quantum Algorithm based circuit that implements the Toffoli gate with multi inputs
Yuval Idan, M.N.Jayakody·May 30, 2023
The prime objective of this study is to seek a circuit diagram for a multi-inputs Toffoli gate including only single qubit gates and CNOTs. In this regard, we have developed two variational quantum algorithms that can be used to implement a multi-inp...
Shallow unitary decompositions of quantum Fredkin and Toffoli gates for connectivity-aware equivalent circuit averaging
P. M. Q. Cruz, Bruno Murta·May 29, 2023
The controlled-swap and controlled-controlled-not gates are at the heart of the original proposal of reversible classical computation by Fredkin and Toffoli. Their widespread use in quantum computation, both in the implementation of classical logic s...
Extension of Exactly-Solvable Hamiltonians Using Symmetries of Lie Algebras.
Smik Patel, Tzu-Ching Yen, A. Izmaylov·May 29, 2023
Exactly solvable Hamiltonians that can be diagonalized by using relatively simple unitary transformations are of great use in quantum computing. They can be employed for the decomposition of interacting Hamiltonians either in Trotter-Suzuki approxima...
Ancilla-free scheme of deterministic topological quantum gates for Majorana qubits
Suyu Zhang, Jian‐Song Hong, Yuan Xue +4 more·May 29, 2023
The realization of quantum gates in topological quantum computation still confronts significant challenges in both fundamental and practical aspects. Here, we propose a deterministic and fully topologically protected measurement-based scheme to reali...
On sampling determinantal and Pfaffian point processes on a quantum computer
R. Bardenet, Michaël Fanuel, A. Feller·May 25, 2023
DPPs were introduced by Macchi as a model in quantum optics the 1970s. Since then, they have been widely used as models and subsampling tools in statistics and computer science. Most applications require sampling from a DPP, and given their quantum o...