旋转参考系中纠缠探测器的辐射过程

圆形轨迹上的单探测器和纠缠探测器在(2+1)维闵可夫斯基时空中的辐射过程

Radiative processes of single and entangled detectors on circular trajectories in (2+1) dimensional Minkowski spacetime

本文研究(2+1)维闵可夫斯基时空中圆形轨迹上纠缠Unruh-DeWitt探测器的辐射过程，计算其跃迁概率率，发现交叉跃迁率可与自跃迁率相当，并探讨热浴和有限开关时间的影响。

Radiative processes of two entangled atoms outside a Schwarzschild black hole

We consider radiative processes of a quantum system composed by two identical two-level atoms in a black-hole background. We assume that these identical two-level atoms are placed at fixed radial distances outside a Schwarzschild black hole and interacting with a quantum electromagnetic field prepared in one of the usual vacuum states, namely the Boulware, Unruh or the Hartle-Hawking vacuum states. We study the structure of the rate of variation of the atomic energy. The intention is to identify in a quantitative way the contributions of vacuum fluctuations and radiation reaction to the entang…

Radiative Tail of Realistic Rotating Gravitational Collapse

An astrophysically realistic model of wave dynamics in black-hole spacetimes must involve a non-spherical background geometry with angular momentum. We consider the evolution of gravitational (and electromagnetic) perturbations in rotating Kerr spacetimes. We show that a rotating Kerr black hole becomes `bald' slower than the corresponding spherically-symmetric Schwarzschild black hole. Moreover, our results turn over the traditional belief (which has been widely accepted during the last three decades) that the late-time tail of gravitational collapse is universal. In particular, we show that …

Radiative process of two entangled uniformly accelerated atoms in a thermal bath: a possible case of anti-Unruh event

We study the radiative process of two entangled two-level atoms uniformly accelerated in a thermal bath, coupled to a massless scalar field. First, using the positive frequency Wightman function from the Minkowski modes with a Rindler transformation we provide the transition probabilities for the transitions from maximally entangled symmetric and anti-symmetric Bell states to the collective excited state in $(1+1)$ and $(1+3)$ dimensions. We observe a possible case of \emph{anti-Unruh-like} event in these transition probabilities, though the $(1+1)$ and $(1+3)$ dimensional results are not comp…

慢旋转弱带电克尔-纽曼黑洞上的辐射性麦克斯韦散射

Radiative Maxwell Scattering on Slowly Rotating Weakly Charged Kerr-Newman Black Holes

研究慢旋转弱带电克尔-纽曼外部时空中的无源麦克斯韦场，在移除静态库仑扇区后建立有限能量散射理论，通过守恒通量分解、自旋1曲率变量转移机制和慢弱主估计，证明辐射场的整体有界性、积分局部能量衰减、辐射场、波算子和渐近完备性。

Radiative process of two entanglement atoms in de Sitter spacetime

We investigate the radiative processes of a quantum system composed by two identical two-level atoms in the de Sitter spacetime, interacting with a conformally coupled massless scalar field prepared in the de Sitter-invariant vacuum. We discuss the structure of the rate of variations of the atomic energy for two static atoms. Following a procedure developed by Dalibard, Dupont-Roc and Cohen-Tannoudji, our intention is to identify in a quantitative way the contributions of vacuum fluctuations and the radiation reaction to the generation of quantum entanglement and to the degradation of entangle…

均匀加速产生的双光子发射：Unruh激发、辐射衰变与场纠缠

Two-photon emission from uniform acceleration: Unruh excitation, radiative decay, and field entanglement

针对均匀加速Unruh-DeWitt探测器的双光子发射问题，采用二阶微扰理论推导场末态并分类发射通道，揭示了加速度对辐射纠缠与热结构的影响，为非惯性系量子场论及相对论量子信息提供新支撑。

Approach to a Parity Deformed Jaynes-Cummings Model and the Maximally Entangled States

A parity deformed Jaynes-Cummings model (JCM) is introduced, which describes an interaction of a two-level atom with a $λ$-deformed quantized field. In the rotating wave approximation (RWA), all eigen-values and eigen-functions of this model are obtained exactly. Assuming that initially the field is prepared in the Wigner cat state (WCS) and the two-level atom is in the excited state, it has been shown that the atomic Rabi oscillations exhibit a quasi-periodic behavior in the collapse and revival patterns. The influence of the deformation parameter on the time evolution of non-classical featur…

作为脱形引力的DHOST理论：从黑洞到辐射时空

DHOST theories as disformal gravity: From black holes to radiative spacetimes

本文综述了DHOST理论中利用脱形场重定义构造旋转黑洞和非线性辐射时空精确解的方法，系统刻画了脱形变换对Petrov类型的影响，并推导了脱形张量引力波的产生条件。