Bosonic modes have wide applications in various quantum technologies, such as optical
photons for quantum communication, magnons in spin ensembles for quantum information …

Improving the coherence of superconducting qubits is a fundamental step towards the
realization of fault-tolerant quantum computation. However, coherence times of quantum …

Quantum metrology with entangled resources aims to achieve sensitivity beyond the
standard quantum limit by harnessing quantum effects even in the presence of …

We propose a quantum-enhanced heat engine with entanglement. The key feature of our
scheme is superabsorption, which facilitates enhanced energy absorption by entangled …

Superconducting microwave cavities featuring ultrahigh Q-factors, which measure the
efficiency of energy storage in relation to energy loss in a system, are revolutionizing …

Superconducting microwave cavities with ultra-high Q-factors are revolutionizing the field of
quantum computing, offering long coherence times exceeding 1 ms, which is critical for …

In the field of superconducting electronics, a π phase shifter based on a ferromagnetic
Josephson junction is expected to provide various advantages to classical and quantum …

Parasitic two-level-system (TLS) defects are one of the major factors limiting the coherence
times of superconducting qubits. Although there has been significant progress in …

Strong nonlinear coupling of superconducting qubits and/or photons is a critical building
block for quantum information processing. Because of the perturbative nature of the …

Semiconductor-based superconducting qubits offer a versatile platform for studying hybrid
quantum devices in circuit quantum electrodynamics (QED) architecture. Most of these …