Parity–time (PT) symmetry challenges the long-held theoretical basis that only Hermitian
operators correspond to observable phenomena in quantum mechanics. Non-Hermitian …

Loss and noise are usually undesirable in electronics and optics, which are generally
mitigated by separate ways in the cost of bulkiness and complexity. Recent studies of non …

Exceptional-point (EP) sensors exhibit a square-root resonant frequency bifurcation in
response to external perturbations, making them appear attractive for sensing applications …

Exceptional points (EPs) in non-Hermitian systems have been widely investigated due to
their increased sensitivity in comparison with standard systems. In this Letter, we report the …

Wireless biosensors are essential for digital transformations in health and medicine.
Chipless resonant antenna‐based biosensors are affordable and tractable but are …

In this work, a battery-free wireless multiplexed sensor is presented for monitoring the
wound healing process. The compact, integrated wireless wound sensor can simultaneously …

We present the concept and design of physically unclonable function (PUF)-based
cryptographic key generation, which exploits the uniqueness of electromagnetic signatures …

This article proposes a pseudo-Hermitian coreless transformer (PH-CLT) based on the
pseudo-Hermitian theory. Based on the motion equations, the corresponding Lagrangian …

Chronic wounds have emerged as a significant healthcare burden, affecting millions of
patients worldwide and presenting a substantial challenge to healthcare systems. The …

External perturbations applied at the exceptional point (EP) of parity-time (PT) or anti-PT
(APT) symmetric systems demonstrate extreme sensitivity of eigenvalues. The phase …