Papers

Shravan Kumar Parthasarathy, B. Kallinger, F. Kaiser +4 more·Feb 2, 2023

The ultimate motivation of my project is to address the possibility of building a quantum analogue of Internet of Things in order to improve the standards of quantum information processing. A distributed quantum computing network which is capable of ...

Marcus Edwards·Feb 2, 2023

One of the most exciting quantum emulation [1] breakthroughs was the first analog signal-based emulation of a universal quantum computer [2]. This yielded a very interesting paper, but no practical use - even for theorists. The reason for this was th...

Randy Kuang·Feb 2, 2023

We know the classical public cryptographic algorithms are based on certain NP-hard problems such as the integer factoring in RSA and the discrete logarithm in Diffie-Hellman. They are going to be vulnerable with fault-tolerant quantum computers. We a...

Kunihiro Wasa, S. Nishio, K. Suetsugu +4 more·Feb 1, 2023

Large-scale quantum information processing requires the use of quantum error-correcting codes to mitigate the effects of noise in quantum devices. Topological error-correcting codes, such as surface codes, are promising candidates, as they can be imp...

K. S. Christensen, N. Zinner, M. Kjaergaard·Feb 1, 2023

Multi-qubit parity measurements are at the core of many quantum error correction schemes. Extracting multi-qubit parity information typically involves using a sequence of multiple two-qubit gates. In this paper, we propose a superconducting circuit d...

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 ...

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...

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 ...

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...

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...

R. Mezher, Ana Filipa Carvalho, Shane Mansfield·Jan 23, 2023

An important challenge for current and near-term quantum devices is finding useful tasks that can be preformed on them. We first show how to efficiently encode a bounded $n\times n$ matrix $A$ into a linear optical circuit with $2n$ modes. We then ap...

Raghav G. Jha·Jan 23, 2023

We discuss fundamentals of quantum computing and information - quantum gates, circuits, algorithms, theorems, error correction, and provide collection of QISKIT programs and exercises for the interested reader.

Zoubeir Mlika, S. Cherkaoui, J. Laprade +1 more·Jan 20, 2023

This paper applies a quantum machine learning technique to predict mobile users' trajectories in mobile wireless networks using an approach called quantum reservoir computing (QRC). Mobile users' trajectories prediction belongs to the task of tempora...

J. Ziegler, F. Luthi, Michael S. Ramsey +3 more·Jan 20, 2023

Gate-defined quantum dots (QDs) have appealing attributes as a quantum computing platform. However, near-term devices possess a range of possible imperfections that need to be accounted for during the tuning and operation of QD devices. One such prob...

Chen Qian, Wei-Feng Zhuang, R. Guo +2 more·Jan 18, 2023

Variational quantum algorithms, which consist of optimal parameterized quantum circuits, are promising for demonstrating quantum advantages in the noisy intermediate-scale quantum (NISQ) era. Apart from classical computational resources, different ki...

Frank Z. Wang·Jan 18, 2023

Quantum computing engineering integrates quantum electronic engineering and computer science required to develop quantum computer hardware and software. In this study, we used four experiments (a single spin experiment, a giant spin experiment, a nan...

L. Domingo, G. Carlo, F. Borondo·Jan 17, 2023

The biggest challenge that quantum computing and quantum machine learning are currently facing is the presence of noise in quantum devices. As a result, big efforts have been put into correcting or mitigating the induced errors. But, can these two fi...

O. Busel, Sami Laine, Olli Mansikkamäki +1 more·Jan 17, 2023

Transmon arrays are one of the most promising platforms for quantum information science. Despite being often considered simply as qubits, transmons are inherently quantum mechanical multilevel systems. Being experimentally controllable with high fide...

Yimu Bao, Ruihua Fan, Ashvin Vishwanath +1 more·Jan 13, 2023

We develop an effective field theory characterizing the impact of decoherence on states with abelian topological order and on their capacity to protect quantum information. The decoherence appears as a temporal defect in the double topological quantu...