Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Subroutines in Branch-Price-and-Cut for Vehicle Routing
Friedrich Wagner, Frauke Liers·Dec 20, 2024
Motivated by recent progress in quantum hardware and algorithms researchers have developed quantum heuristics for optimization problems, aiming for advantages over classical methods. To date, quantum hardware is still error-prone and limited in size ...
Schmidt quantum compressor
I. F. Araújo, Hyeondo Oh, Nayeli A. Rodr'iguez-Briones +1 more·Dec 20, 2024
This work introduces the Schmidt quantum compressor, an innovative approach to quantum data compression that leverages the principles of Schmidt decomposition to encode quantum information efficiently. In contrast to traditional variational quantum a...
Kramers-Protected Hardware-Efficient Error Correction with Andreev Spin Qubits.
Haoran Lu, Isidora Araya Day, A. Akhmerov +2 more·Dec 20, 2024
We propose an architecture for bit-flip error correction of Andreev spins that is protected by Kramers' degeneracy. Specifically, we show that a coupling network of linear inductors and Andreev spin qubits results in a static Hamiltonian composed of ...
Orthogonal polynomials and perfect state transfer.
·Dec 20, 2024
The aim of this review is to discuss some applications of orthogonal polynomials in quantum information processing. The hope is to keep the paper self-contained so that someone wanting a brief introduction to the theory of orthogonal polynomials and ...
New design of three-qubit system with three transmons and a single fixed-frequency resonator coupler
Jeongsoo Kang, Chanpyo Kim, Younghun Kim +1 more·Dec 20, 2024
The transmon, which has a short gate time and remarkable scalability, is the most commonly utilized superconducting qubit, based on the Cooper pair box as a qubit or coupler in superconducting quantum computers. Lattice and heavy-hexagon structures a...
Efficient Hamiltonian Simulation: A Utility Scale Perspective for Covalent Inhibitor Reactivity Prediction
Marek Kowalik, Sam Genway, Vedangi Pathak +8 more·Dec 20, 2024
Quantum computing applications in the noisy intermediate-scale quantum (NISQ) era require algorithms that can generate shallower circuits feasible for today's quantum systems. This is particularly challenging for quantum chemistry applications due to...
Implementation of magic state injection within heavy-hexagon architectures
Hansol Kim, Wonjae Choi, Younghun Kwon·Dec 20, 2024
The magic state injection process is a critical component of fault-tolerant quantum computing, and numerous studies have been conducted on this topic. Many existing studies have focused on square-lattice structures, where each qubit connects directly...
Engineering high-Q superconducting tantalum microwave coplanar waveguide resonators for compact coherent quantum circuits
Shima Poorgholam-Khanjari, Valentino Seferai, Paniz Foshat +5 more·Dec 20, 2024
Tantalum (Ta) has recently received considerable attention in manufacturing robust superconducting quantum circuits. Ta offers low microwave loss, high kinetic inductance compared to aluminium (Al) and niobium (Nb), and good compatibility with comple...
Error-Corrected Fermionic Quantum Processors with Neutral Atoms.
Robert Ott, Daniel Gonz'alez-Cuadra, T. Zache +3 more·Dec 20, 2024
Many-body fermionic systems can be simulated in a hardware-efficient manner using a fermionic quantum processor. Neutral atoms trapped in optical potentials can realize such processors, where nonlocal fermionic statistics are guaranteed at the hardwa...
Classical Combinatorial Optimization Scaling for Random Ising Models on 2D Heavy-Hex Graphs
Elijah Pelofske, Andreas Bartschi, S. Eidenbenz·Dec 20, 2024
Motivated by near term quantum computing hardware limitations, combinatorial optimization problems that can be addressed by current quantum algorithms and noisy hardware with little or no overhead are used to probe capabilities of quantum algorithms ...
Combinatorial optimization with quantum computers
Francisco Chicano, Gabiel Luque, Z. Dahi +1 more·Dec 20, 2024
Quantum computers leverage the principles of quantum mechanics to do computation with a potential advantage over classical computers. Though a single classical computer transforms one particular binary input into an output after applying one operator...
A Quantum Dual Logarithmic Barrier Method for Linear Optimization
Zeguan Wu, Pouya Sampourmahani, Mohammadhossein Mohammadisiahroudi +1 more·Dec 20, 2024
Quantum computing has the potential to speed up some optimization methods. One can use quantum computers to solve linear systems via quantum linear system algorithms (QLSAs). QLSAs can be used as a subroutine for algorithms that require solving linea...
Simulating Three-Flavor Neutrino Oscillations on an NMR Quantum Processor
Gayatri Singh, Arvind, K. Dorai·Dec 20, 2024
Neutrino oscillations can be efficiently simulated on a quantum computer using the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) theory in close analogy to the physical processes realized in experiments. We simulate three-flavor neutrino oscillations on a t...
Characterisation of individual gates using twirling circuits
David Amaro-Alcalá·Dec 19, 2024
We present a method to characterise qubit gates. Utilising the supermap formalism, we create a scheme for deterministic single-qubit gate analysis. Our approach introduces a new twirling process that is applied directly through fixed circuits. This m...
Use of Faulty States in Cat-Code Error Correction
Michael Hanks, Soovin Lee, Nicolo Lo Piparo +4 more·Dec 19, 2024
Bosonic codes have seen a resurgence in interest for applications as varied as fault tolerant quantum architectures, quantum enhanced sensing, and entanglement distribution. Cat codes have been proposed as low-level elements in larger architectures, ...
Single-Photon Advantage in Quantum Cryptography Beyond QKD
Daniel A. Vajner, Koray Kaymazlar, Fenja Drauschke +8 more·Dec 19, 2024
Quantum key distribution (QKD) can be used to establish a secret key between trusted parties. Many practical use-cases in communication networks, however, involve parties who do not trust each other. A fundamental cryptographic building block for suc...
Quantum SWAP gate realized with CZ and iSWAP gates in a superconducting architecture
Christian Križan, Janka Bizn'arov'a, Liangyu Chen +19 more·Dec 19, 2024
It is advantageous for any quantum processor to support different classes of two-qubit quantum logic gates when compiling quantum circuits, a property that is typically not present in existing platforms. In particular, access to a gate set that inclu...
Capturing the Page Curve and Entanglement Dynamics of Black Holes in Quantum Computers
Talal Ahmed Chowdhury, Kwangmin Yu, Md Asaduzzaman +1 more·Dec 19, 2024
Quantum computers are emerging technologies expected to become important tools for exploring various aspects of fundamental physics in the future. Therefore, we pose the question of whether quantum computers can help us to study the Page curve and th...
Quantum computation over the vibrational modes of a single trapped ion
A. C. Ricardo, G. G. D. Lima, Amanda G. Val'erio +2 more·Dec 19, 2024
Continuous-variable quantum computing utilizes continuous parameters of a quantum system to encode information, promising efficient solutions to complex problems. Trapped-ion systems provide a robust platform with long coherence times and precise qub...
Multiplexed Readout of Superconducting Qubits Using a 3D Re-entrant Cavity Filter
Mustafa Bakr, S. Fasciati, Shuxiang Cao +7 more·Dec 19, 2024
Hardware efficient methods for high fidelity quantum state measurements are crucial for superconducting qubit experiments, as qubit numbers grow and feedback and state reset begin to be employed for quantum error correction. We present a 3D re-entran...