Heliciton-Assisted Chirality-Induced Spin Selectivity from Helical Dirac Current

• URL: http://arxiv.org/abs/2607.00624v1
• Date: Wed, 01 Jul 2026 08:42:18 GMT
• Title: Heliciton-Assisted Chirality-Induced Spin Selectivity from Helical Dirac Current
• Abstract summary: A heliciton-assisted resonance mechanism produces spin polarization in the inelastic sideband sector.<n>This identifies CISS as a heliciton-assisted resonance mechanism that produces spin polarization in the inelastic sideband sector.
• Score: 1.9879064696481736
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We develop a quantized chiral-field mechanism for chirality-induced spin selectivity (CISS). The corresponding quantum is a heliciton: a helical mode with phase coordinate $φ-qz$, screw momentum $\hbar q$, and energy $\hbarΩ_q$. A helical electron can absorb or emit this quantum, converting the static chiral vertex developed in our preceding work into an inelastic resonant scattering process. Using first Born scattering theory, we show that an incident two-spin-channel state generates two heliciton-assisted sidebands. Absorption converts the $\uparrow k$ channel into the $\downarrow,k+q$ sideband, while emission converts the $\downarrow k$ channel into the $\uparrow,k-q$ sideband. Thus the heliciton supplies both the screw momentum and energy needed to turn the handedness-conversion into a resonant spin-selective channel. The two sidebands inherit the same sampled-current overlap $J_χ(k)$ from the static theory, but acquire different kinematic weights and different resonance detunings. The sideband sector reaches full spin polarization at the respective isolated heliciton resonances, with $P_{\rm sb}(k,q)\simeq +1$ for $Δ_-(k,q)=0$ and $P_{\rm sb}(k,q)\simeq -1$ for $Δ_+(k,q)=0$. Reversing the screw handedness, $q\rightarrow -q$, interchanges the two sideband channels and reverses the polarization. No ad hoc spin-dependent potential is introduced. The spin selectivity comes from three ingredients: helical Dirac-current texture, quantized screw-symmetric environmental motion, and resonant exchange of screw momentum and energy. This identifies CISS as a heliciton-assisted resonance mechanism that produces spin polarization in the inelastic sideband sector.

Related papers

• Critical bifurcation and deconfined quantum criticality in an interacting cluster Ising chain [35.18016233072556]
  We investigate a cluster Ising chain with an additional nearest-neighbor interaction.<n>Without the interaction, the Jordan-Wigner transformation decomposes the model into a triplet of identical Majorana chains.<n>Our simulations reveal a translation-symmetry-breaking antiferromagnet reached through first-order transitions.
  arXiv  Detail & Related papers  (2026-08-25T08:48:15Z)
• Lamb Shift of a Static Atom Facing a Rotating Surface [41.99844472131922]
  We study how the Lamb shift of a static atom is modified when a nearby planar body rotates rigidly about its normal.<n>We first illustrate the formalism using a graphene sheet and then apply it to finite-thickness Drude and plasma conductors and to doped semiconductors.
  arXiv  Detail & Related papers  (2026-07-01T21:49:04Z)
• Bound, antibound and resonance two-photon states in chiral waveguide QED [51.56484100374058]
  We present a theoretical study of the two-particle spectrum $(K)$ for the chiral waveguide QED setup.<n>For each pair center-of-mass momentum $K$ there exist distinct solutions with $Imle 0$ in the two-particle spectrum.<n>An interesting finding is that the real part of the spectrum $Re (K)$ in the chiral model is gapless.
  arXiv  Detail & Related papers  (2026-04-22T14:19:46Z)
• Quantum Tomography of Fermion Pairs in $e^+e^-$ Collisions: Longitudinal Beam Polarization Effects [11.246830439528786]
  We present a quantum tomography study of fermion pair production at future $e+e-$ colliders.<n>We study the processes $e+ e-to tbart, e+e-to +-$ and Bhabha scattering.
  arXiv  Detail & Related papers  (2026-02-02T19:38:33Z)
• Beyond spin-1/2: Multipolar spin-orbit coupling in noncentrosymmetric crystals with time-reversal symmetry [0.0]
  We develop a general multipolar theory of strong spin-orbit coupling for large total angular momentum $j$ in time-reversal-symmetric, noncentrosymmetric crystals.<n>Our results provide a symmetry-based framework for analyzing and predicting multipolar spin-orbit coupling, total-angular-momentum textures, and spintronic responses in heavy-element materials without an inversion center.
  arXiv  Detail & Related papers  (2025-12-20T17:48:36Z)
• Singular transport in non-equilibrium strongly internal-coupled 1D tilted field spin-1/2 chain [3.1592042828921505]
  This work studies a one-dimensional non-equilibrium Ising chain immersed in a tilted magnetic field.<n>Every spin contacts a Boson reservoir with the dissipative system-environment interaction.
  arXiv  Detail & Related papers  (2024-12-18T13:00:58Z)
• Unifying Floquet theory of longitudinal and dispersive readout [33.7054351451505]
  We devise a Floquet theory of longitudinal and dispersive readout in circuit QED.<n>We apply them to superconducting and spin-hybrid cQED systems.
  arXiv  Detail & Related papers  (2024-07-03T18:00:47Z)
• Waveguide quantum electrodynamics at the onset of spin-spin correlations [36.136619420474766]
  We find that molecules belonging to one of the two crystal sublattices form one-dimensional spin chains.<n>The microwave transmission shows evidences for the collective coupling of quasi-identical spins to the propagating photons.
  arXiv  Detail & Related papers  (2024-04-04T18:00:05Z)
• Schrieffer-Wolff transformation for non-Hermitian systems: application for $\mathcal{PT}$-symmetric circuit QED [0.0]
  We develop the generalized Schrieffer-Wolff transformation and derive the effective Hamiltonian suitable for various quasi-degenerate textitnon-Hermitian systems. We show that non-hermiticity mixes the "dark" and the "bright" states, which has a direct experimental consequence.
  arXiv  Detail & Related papers  (2023-09-18T14:50:29Z)
• Position as an independent variable and the emergence of the $1/2$-time fractional derivative in quantum mechanics [0.0]
  We derive the function $cal P(pm)$, which generates the space evolution under the potential $cal V(q)$ and Hamiltonian $cal H$. Using Dirac's procedure, separation of variables is possible, and while the coupled position-independent Dirac equations depend on the $1/2$-fractional derivative, the coupled time-independent Dirac equations (TIDE) lead to positive and negative shifts in the potential.
  arXiv  Detail & Related papers  (2023-07-25T19:57:23Z)
• Anharmonic oscillator: a solution [77.34726150561087]
  The dynamics in $x$-space and in $(gx)-space corresponds to the same energy spectrum with effective coupling constant $hbar g2$. A 2-classical generalization leads to a uniform approximation of the wavefunction in $x$-space with unprecedented accuracy.
  arXiv  Detail & Related papers  (2020-11-29T22:13:08Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.