One of the challenges of the modern photonics is to develop all‐optical devices enabling
increased speed and energy efficiency for transmitting and processing information on an …

The first good prediction of the multipole soliton solution for the non-integrable equation, ie,
the saturable nonlinear Schrödinger equation under the PT-symmetric potential, is achieved …

Open physical systems with balanced loss and gain, described by non-Hermitian parity-time
PT reflection symmetric Hamiltonians, exhibit a transition which could engender modes that …

Exceptional points (EPs) of a non-Hermitian Hamiltonian with parity-time-reversal (PT)
symmetry have the potential to drastically enhance the capabilities of metrology and sensing …

Parity-time (PT) symmetry has been unveiling new photonic regimes in non-Hermitian
systems, with opportunities for lasing, sensing and enhanced light-matter interactions. The …

We provide an experimental framework where periodically driven PT-symmetric systems can
be investigated. The setup, consisting of two ultra high frequency oscillators coupled by a …

In recent reports, suggestions have been put forward to the effect that parity and time-
reversal (PT) symmetry in quantum mechanics is incompatible with causality. It is shown …

A conceptual framework extending (time-independent) PT-symmetric quantum mechanics
into the time-dependent domain is presented. It is built upon a nontrivial time-dependent …

We study a non-Hermitian version of the Rabi model, where a two-level system is
periodically driven with an imaginary-valued drive strength, leading to alternating gain and …

We show that a dynamic gain-loss modulation in an optical structure can lead to a direction-
dependent parity-time (PT) phase transition. The phase transition can be made …