Quantum computing is a game-changing technology for global academia, research centers
and industries including computational science, mathematics, finance, pharmaceutical …

Numerical simulation of quantum systems is crucial to further our understanding of natural
phenomena. Many systems of key interest and importance, in areas such as …

Quantum state preparation is an important subroutine for quantum computing. We show that
any n-qubit quantum state can be prepared with a Θ (n)-depth circuit using only single-and …

Quantum machine learning is expected to be one of the first practical applications of near-
term quantum devices. Pioneer theoretical works suggest that quantum generative …

Variational quantum circuits are becoming tools of choice in quantum optimization and
machine learning. In this paper we investigate a class of variational circuits for the purposes …

The pressure of fundamental limits on classical computation and the promise of exponential
speedups from quantum effects have recently brought quantum circuits to the attention of the …

The quantum state preparation problem aims to prepare an-qubit quantum state from the
initial state, for a given unit vector with. The problem is of fundamental importance in …

We construct a quantum oracle relative to which $\mathsf {BQP}=\mathsf {QMA} $ but
cryptographic pseudorandom quantum states and pseudorandom unitary transformations …

In quantum computation every unitary operation can be decomposed into quantum circuits—
a series of single-qubit rotations and a single type entangling two-qubit gates, such as …

Efficient methods for loading given classical data into quantum circuits are essential for
various quantum algorithms. In this paper, we propose an algorithm called Approximate …