During the last ten years, superconducting circuits have passed from being interesting
physical devices to becoming contenders for near-future useful and scalable quantum …

According to quantum mechanics, a physical system can be in any linear superposition of its
possible states. Although the validity of this principle is routinely validated for microscopic …

The traditional view from particle physics is that quantum gravity effects should only become
detectable at extremely high energies and small length scales. Due to the significant …

The quantization of gravity is widely believed to result in gravitons–particles of discrete
energy that form gravitational waves. But their detection has so far been considered …

Although strong nonlinear interactions between quantized excitations are an important
resource for quantum technologies based on bosonic oscillator modes, most …

At room temperature, mechanical motion driven by the quantum backaction of light has been
observed only in pioneering experiments in which an optical restoring force controls the …

In recent years, important progress has been made towards encoding and processing
quantum information in the large Hilbert space of bosonic modes. Mechanical resonators …

Mechanical degrees of freedom are natural candidates for continuous-variable quantum
information processing and bosonic quantum simulations. However, these applications …

Bulk acoustic wave (BAW) resonators are attractive as intermediaries in a microwave-to-
optical transducer, due to their long coherence times and controllable coupling to optical …

Topological defects are discontinuities of a system protected by global properties, with wide
applications in mathematics and physics. While previous experimental studies mostly …