DYNAMICSSYSTEMSDRIVENQUTIPWe explore the boundary time-crystal transition at the level of quantum trajectories which result from continuous monitoring. This Letter is motivated by recent experiments [G. Ferioli, A. Glicenstein, I. Ferrier-Barbut, and A. Browaeys, Nat. Phys. 19, 1345 (2023)]...
Quantum simulators, continuous-time automata, and translationally invariant systems 来自 arXiv.org 喜欢 0 阅读量: 58 作者:KGH Vollbrecht,JI Cirac 摘要: The general problem of finding the ground state energy of lattice Hamiltonians is known to be very hard, even for a quantum computer. We ...
Time crystals enter the fray The fundamental forces of nature also regard all points in time with indifference. In other words, the laws of physics stay the same from second to second and day to day. This invariance is referred to as continuous time-translation symmetry. Just as crystalline ...
Universal quantum computers are potentially an ideal setting for simulating many-body quantum dynamics that is out of reach for classical digital computers. We use state-of-the-art IBM quantum computers to study paradigmatic examples of condensed matter
Suppressing the loss of ultracold molecules via the continuous quantum Zeno effect. Phys. Rev. Lett. 112, 070404 (2014). Article ADS Google Scholar Chen, T. et al. Quantum Zeno effects across a parity-time symmetry breaking transition in atomic momentum space. NPJ Quantum Inf. https://doi...
The rapid growth of the nanotechnology industry and the wide application of various nanomaterials have raised concerns over their impact on the environment and human health. Yet little is known about the mechanism of cellular uptake and cytotoxicity of n
Intensity distribution of continuous-time quantum walks The Hamiltonian of the photons propagating through evanescently coupled waveguides can be defined as: $$H=\mathop{\sum }\limits_{i=1}^{N}{\beta }_{i}{a}_{i}^{{\dagger} }{a}_{i}+\mathop{\sum }\limits_{i\ne j}^{N}{C}_...
the choice of observables but also depend on the times at which the physical observables are measured. The time correlated two-time commutator dictates the trade-off between the dynamical uncertainties. We demonstrate the dynamics of these uncertainty relations for a spin-1/2 quantum system and ...
Semiconductor III–V photonic crystal (PC) laser is regarded as a promising ultra-compact light source with unique advantages of ultralow energy consumption and small footprint for the next generation of Si-based on-chip optical interconnects. However, t
First, the use of a tuneable source of heralded single photons, i.e., spontaneous parametric down conversion (SPDC) in nonlinear crystals, must be ruled out. This kind of source would imply a heralded measurement that ensures that the propagation of single photons is measured, resulting in a...