The depth of quantum circuits is a critical factor when running them on state-of-the-art
quantum devices due to their limited coherence times. Reducing circuit depth decreases …

Although tensor network states constitute a broad range of exotic quantum states, their
realization is challenging and often requires resources whose depth scales with system size …

Preparing long-range entangled states poses significant challenges for near-term quantum
devices. It is known that measurement and feedback (MF) can aid this task by allowing the …

Measurements and feedback have emerged as a powerful resource for creating quantum
states. However, a detailed understanding is restricted to fixed-point representatives of …

Quantum signal processing combined with quantum eigenvalue transformation has recently
emerged as a unifying framework for several quantum algorithms. In its standard form, it …

We explore the states of matter arising from the spontaneous symmetry breaking (SSB) of
$\mathbb {Z} _2 $ non-onsite symmetries. In one spatial dimension, we construct a …

Preparing long-range entangled states poses significant challenges for near-term quantum
devices. It is known that measurement and feedback (MF) can aid this task by allowing the …

This work introduces a self-learning protocol that incorporates measurement and feedback
into variational quantum circuits for efficient quantum state preparation. By combining …