Long-Range Quantum Tunneling via Matter Wave
arXiv:2406.06162 · doi:10.1038/s42005-024-01924-y
Abstract
Quantum tunneling is a quantum phenomenon in which a microscopic object crosses through a potential barrier even if its energy cannot overcome the barrier. A general belief is that tunneling occurs only when the barrier width is comparable to, or smaller than the de Broglie's wavelength of the object. Here, we study the tunneling of an ultracold atom among far-separated trapping potentials in a state-selective optical lattice and present a mechanism to realize long-range tunneling. We find that, mediated by the propagating matter wave emitted from the atom, coherent tunneling of the atom to the remote lattices occurs as long as bound states are present in the energy spectrum of the system formed by the atom and its matter wave. Going beyond the Markovian approximation, and breaking through the conventional distance constraint, our result opens another avenue to realizing tunneling and gives a guideline to developing tunneling devices.
References in corpus (39)
- Many-Body Physics with Ultracold Gases
- Circuit Quantum Electrodynamics
- Dynamical control of matter-wave tunneling in periodic potentials
- Direct Observation of Second Order Atom Tunnelling
- Subbarrier fusion reactions and many-particle quantum tunneling
- Development of Quantum InterConnects for Next-Generation Information Technologies
- Single Particle Tunneling in Strongly Driven Double Well Potentials
- Unconventional quantum optics in topological waveguide QED
- Experimental evidence for Wigner's tunneling time
- Visualization of Coherent Destruction of Tunneling in an Optical Double Well System
- Long-range coherent coupling in a quantum dot array
- Photon-Assisted Tunneling in a Biased Strongly Correlated Bose Gas
- Nonradiative interaction and entanglement between distant atoms
- Spontaneous Emission in a Matter-Wave Open Quantum System
- Engineering and harnessing giant atoms in high-dimensional baths: a cold atoms' implementation
- Low-loss interconnects for modular superconducting quantum processors
- Matter--wave emission in optical lattices: Single particle and collective effects
- Observation of many-body long-range tunneling after a quantum quench
- Remote Charging and Degradation Suppression for the Quantum Battery
- Superconducting spintronic tunnel diode
- Simulating quantum-optical phenomena with cold atoms in optical lattices
- Tunneling in a very slow ion-molecule reaction
- Observation of Density-Induced Tunneling
- Many-body cavity quantum electrodynamics with driven inhomogeneous emitters
- Generating stable spin squeezing by squeezed-reservoir engineering
- Non-Markovian Sensing of a Quantum Reservoir
- Non-Markovian Quantum Optics with Three-Dimensional State-Dependent Optical Lattices
- Direct tunneling delay time measurement in an optical lattice
- Signatures of quantized coupling between quantum emitters and localized surface plasmons
- Dynamics of Matter-Wave Quantum Emitters in a Structured Vacuum
- Formation of Matter-Wave Polaritons in an Optical Lattice
- Photon assisted long-range tunneling
- Cooper pair tunneling in junctions of singlet quantum Hall states and superconductors
- Analysis of non-Markovian coupling of a lattice-trapped atom to free space
- Chaos-Assisted Long-Range Tunneling for Quantum Simulation
- Long-Range Non-Equilibrium Coherent Tunneling Induced by Fractional Vibronic Resonances
- Quantum speed limit of a noisy continuous-variable system
- Multiband and array effects in matter-wave-based waveguide QED
- Strong coupling of quantum emitters and the exciton polariton in MoS nanodisks