Papers

Yoni Choukroun, Lior Wolf·Jan 27, 2023

Quantum error correction codes (QECC) are a key component for realizing the potential of quantum computing. QECC, as its classical counterpart (ECC), enables the reduction of error rates, by distributing quantum logical information across redundant p...

Andrew Litteken, L. M. Seifert, Jason Chadwick +3 more·Jan 27, 2023

Quantum computing is in an era of limited resources. Current hardware lacks high fidelity gates, long coherence times, and the number of computational units required to perform meaningful computation. Contemporary quantum devices typically use a bina...

Carson Koppel, Brandon Wilfong, Allana G. Iwanicki +3 more·Jan 27, 2023

Decoherence in superconducting qubits has long been attributed to two-level systems arising from the surfaces and interfaces present in real devices. A recent significant step in reducing decoherence was the replacement of superconducting niobium by ...

Zisheng Ye, Xiaoping Qian, W. Pan·Jan 27, 2023

We present a quantum annealing-based solution method for topology optimization (TO). In particular, we consider TO in a more general setting, i.e., applied to structures of continuum domains where designs are represented as distributed functions, ref...

Najmeh Ahmadi, S. Schwertfeger, Philipp Werner +19 more·Jan 26, 2023

Modern quantum technologies have matured such that they can now be used in space applications, e.g., long‐distance quantum communication. Here, the design of a compact true single photon source is presented that can enhance the secure data rates in s...

N. N. Hegade, E. Solano·Jan 26, 2023

We factorize a 48-bit integer using 10 trapped-ion qubits on a Quantinuum’s quantum computer. This result outperforms the recent achievement by B. Yan et al., arXiv:2212.12372 (2022), increasing the success probability by a factor of 6 with a non-hyb...

Marcin Niemiec, Tymoteusz Widlarz, Miralem Mehic·Jan 26, 2023

Quantum cryptography can provide a very high level of data security. However, a big challenge of this technique is errors in quantum channels. Therefore, error correction methods must be applied in real implementations. An example is error correction...

C. Florez, J. Mart'inez-Cifuentes, K. Fonseca-Romero·Jan 26, 2023

. Quantum state estimation is an important task of many quantum information protocols. We consider two families of unitary evolution operators, one with a one-parameter and the other with a two-parameter, which enable the estimation of a single spin ...

Reyhaneh Aghaei Saem, A. Moosavian·Jan 26, 2023

Simulating physical systems has been an important application of classical and quantum computers. In this article we present an efficient classical algorithm for simulating time-dependent quantum mechanical Hamiltonians over constant periods of time. ...

T. Yoshioka, Keitaro Sasada, Yuichiro Nakano +1 more·Jan 25, 2023

Quantum computers are expected to accelerate solving combinatorial optimization problems, including algorithms such as Grover adaptive search and quantum approximate optimization algorithm (QAOA). However, many combinatorial optimization problems inv...

B. Nikolov, E. Diamond-Hitchcock, J. Bass +2 more·Jan 25, 2023

Neutral atoms are a promising platform for scalable quantum computing, however, prior demonstration of high fidelity gates or low-loss readout methods have employed restricted numbers of qubits. Using randomized benchmarking of microwave-driven singl...

Junyao Zhang, P. Bogdan, Shahin Nazarian·Jan 25, 2023

Exascale computing and its associated applications have required increasing degrees of efficiency. Semiconductor-Transistor-based Circuits (STbCs) have struggled with increasing the GHz frequency while dealing with power dissipation issues. Emerging ...

Dominik Šafránek, D. Rosa·Jan 25, 2023

We present a method to estimate the probabilities of outcomes of a quantum observable, its mean value, and higher moments by measuring any other observable. This method is general and can be applied to any quantum system. In the case of estimating th...

Qin Li, Junyu Quan, Jinjing Shi +2 more·Jan 25, 2023

Variational quantum algorithms (VQAs) are considered as one of the most promising candidates for achieving quantum advantages on quantum devices in the noisy intermediate-scale quantum (NISQ) era. They have been developed for numerous applications su...

Haoting Xu, H. Kee·Jan 25, 2023

Entangling a pair of far-distant qubits in many-body systems has been a challenging task in quantum computing. A robust entanglement was predicted in the rainbow states and generating nonlocal Bell pairs protected by a mirror symmetry was recently pr...

F. Holweck, Luke Oeding·Jan 25, 2023

Twenty years ago Cayley's hyperdeterminant, the degree four invariant of the polynomial ring $\mathbb{C}[\mathbb{C}^2\otimes\mathbb{C}^2\otimes \mathbb{C}^2]^{{\text{SL}_2(\mathbb{C})}^{\times 3}}$, was popularized in modern physics as separates genu...

C'esar Feniou, M. Hassan, Diata Traor'e +3 more·Jan 24, 2023

ADAPT-VQE is a robust algorithm for hybrid quantum-classical simulations of quantum chemical systems on near-term quantum computers. While its iterative process systematically reaches the ground state energy, practical implementations of ADAPT-VQE ar...

Sascha Heußen, L. Postler, M. Rispler +5 more·Jan 24, 2023

Fault-tolerant quantum error correction provides a strategy to protect information processed by a quantum computer against noise which would otherwise corrupt the data. A fault-tolerant universal quantum computer must implement a universal gate set o...

Yu Zheng, A. Ferraro, A. F. Kockum +1 more·Jan 24, 2023

In the field of fault-tolerant quantum computing, continuous-variable systems can be utilized to protect quantum information from noise through the use of bosonic codes. These codes map qubit-type quantum information onto the larger bosonic Hilbert s...

Shibdas Roy·Jan 24, 2023

The complexity class $PSPACE$ includes all computational problems that can be solved by a classical computer with polynomial memory. All $PSPACE$ problems are known to be solvable by a quantum computer too with polynomial memory and are, thus, known ...