Corpus ID: 237562841

Observation of non-Hermitian many-body skin effects in Hilbert space

  title={Observation of non-Hermitian many-body skin effects in Hilbert space},
  author={Weixuan Zhang and Fengxiao Di and Hao Yuan and Haiteng Wang and Xingen Zheng and Lu He1 and Houjun Sun and Xiangdong Zhang},
space Weixuan Zhang1*, Fengxiao Di1*, Hao Yuan1*, Haiteng Wang1, Xingen Zheng1, Lu He1, Houjun Sun2, and Xiangdong Zhang1$ 1Key Laboratory of advanced optoelectronic quantum architecture and measurements of Ministry of Education, Beijing Key Laboratory of Nanophotonics & Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, 100081, Beijing, China 2 Beijing Key Laboratory of Millimeter wave and Terahertz Techniques, School of Information and Electronics, Beijing… Expand

Figures from this paper

Fate of the non-Hermitian skin effect in many-body fermionic systems
We revisit the fate of the skin modes in many-body non-Hermitian fermionic systems. Contrary to the single-particle case, the many-body ground state cannot exhibit an exponential localization of allExpand
Chiral metals and entrapped insulators in a one-dimensional topological non-Hermitian system
Ayan Banerjee, ∗ Suraj S. Hegde, 3, † Adhip Agarwala, 4, ‡ and Awadhesh Narayan § Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560012, India Institut fürExpand


Realization of discrete quantum billiards in a two-dimensional optical lattice
We propose the method for optical visualization of Bose-Hubbard model with two interacting bosons in the form of two-dimensional (2D) optical lattices consisting of optical waveguides, where theExpand
Non-Hermitian Kondo Effect in Ultracold Alkaline-Earth Atoms.
It is shown that the non-Hermiticity induces anomalous reversion of renormalization-group flows which violate the g theorem due to nonunitarity and produce a quantum phase transition unique to non- hermiticity. Expand
Non-Hermitian fractional quantum Hall states
It is elucidate that systems with non-Hermitian two-body interactions show a fractional quantum Hall (FQH) state and discovers that the FQH state emerges without any repulsive interactions, which is attributed to a phenomenon reminiscent of the continuous quantum Zeno effect. Expand
Observation of the exceptional-point-enhanced Sagnac effect
A precisely controllable integrated optical gyroscope based on stimulated Brillouin scattering is used to study non-Hermitian physics and nonlinear optics in high-quality-factor microresonators, revealing a four-fold enhancement of the Sagnac scale factor near exceptional points. Expand
Non-Bloch Band Theory of Non-Hermitian Systems.
A generalized Bloch band theory in one-dimensional spatially periodic tight-binding models is established and it is shown how to define the Brillouin zone in non-Hermitian systems. Expand
Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction.
Motivated by recent experimental advances in ultracold atoms, we analyze a non-Hermitian (NH) BCS Hamiltonian with a complex-valued interaction arising from inelastic scattering between fermions. WeExpand
Observation of arbitrary topological windings of a non-Hermitian band.
The non-trivial topological features in the energy band of non-Hermitian systems provide promising pathways to achieve robust physical behaviors in classical or quantum open systems. A keyExpand
Topological Phases of Non-Hermitian Systems
Recent experimental advances in controlling dissipation have brought about unprecedented flexibility in engineering non-Hermitian Hamiltonians in open classical and quantum systems. A particularExpand
Observation of non-Hermitian topology and its bulk–edge correspondence in an active mechanical metamaterial
It is demonstrated that topological properties of a mechanical system can predict the localization of waves in realistic settings where the energy can grow and/or decay, and open avenues for the field of non-Hermitian topology and for manipulating waves in unprecedented fashions. Expand
Topological Origin of Non-Hermitian Skin Effects.
It is revealed that the skin effect originates from intrinsic non-Hermitian topology, which explains the universal feature of the known skin effect, and leads to new types of the skin effects-symmetry-protected skin effects. Expand