More Like this

1. Full-frequency GW without frequency

   https://doi.org/10.1063/5.0035141  

   Bintrim, Sylvia J.; Berkelbach, Timothy C. (January 2021, The Journal of Chemical Physics)
2. Frequency synchronization induced by frequency detuning

   https://doi.org/10.1126/sciadv.adu4114  

   Ocampo-Espindola, Jorge Luis; Bick, Christian; Motter, Adilson E; Kiss, István Z (June 2025, Science Advances)

   It is widely held that identical systems tend to behave similarly under comparable conditions. Yet, for systems that interact through a network, symmetry breaking can lead to scenarios in which this expectation does not hold. Prominent examples are chimera states in multistable phase-oscillator networks. Here, we show that for a broad class of such networks, asynchronous states can be converted into frequency-synchronized states when identical oscillators are detuned to have different intrinsic frequencies. We show that frequency synchronization is achieved over a range of intrinsic frequency detuning and is thus a robust effect. These results, which are supported by theory, simulations, and electrochemical oscillator experiments, reveal a counterintuitive opportunity to use parameter heterogeneity to promote synchronization. 

   more » « less
3. Estimating stationary mass, frequency by frequency

   Nakul, Milind; Muthukumar, Vidya; Pananjady, Ashwin (July 2025, Conference on Learning Theory)
4. Estimating stationary mass, frequency by frequency

   Nakul, Milind; Muthukumar, Vidya; Pananjady, Ashwin (June 2025, Conference on Learning Theory)
5. Frequency-selective actuation of liquid crystalline elastomer actuators with radio-frequency

   https://doi.org/10.1038/s41467-025-62313-9  

   Song, Yiwen; Li, Zefang; Zadan, Mason; Wang, Jingxian; Kumar, Swarun; Majidi, Carmel (August 2025, Nature Communications)

   Abstract Soft and miniaturized robots possess the capability to operate inside narrow, confined environments. However, powering soft robots inside these environments with on-board batteries or wired connections to external power supplies can significantly restrain their mobility. Similarly, wireless actuation approaches are constrained by near-field actuation, line-of-sight operation, or indiscriminate actuation of many actuators. To provide higher mobility for wireless soft robot to operate inside non-line-of-sight scenarios, we present a radio-frequency system that introduces frequency-selective actuation of liquid crystal elastomer actuators. We create liquid crystalline elastomer actuators with a low actuation temperature and embed them with conductive traces that resonate and heat by selected frequencies of radio-frequency excitation in the 2.40 GHz range. We further develop a wireless actuation platform that infers the wireless channel and beamforms towards the actuator to achieve efficient beamforming. Demonstrations show our system is capable of selectively actuating different actuators while the robot is in motion and obstructed by occlusions. 

   more » « less