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VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Physics Colloquium - Graduate Student Presentations (Turner / 
 Simonson)
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260912T085029Z
UID:tag:localist.com\,2008:EventInstance_42164820914862
DTSTART:20230126T210000Z
DTEND:20230126T220000Z
DESCRIPTION:Please join physics graduate students\, Rhiannon Turner and Luc
 as Simonson\, for their in-person presentations Thursday\, January 19th at
  4 PM - Fisher Hall 139.\n\n \n\nDisentangling Very-High-Energy Gamma-Ray 
 Emission from SNR G106.3+2.7 Using the HAWC Observatory\n\nRhiannon Turner
  [Advisor: Dr. Petra Huentemeyer]\n\nSupernova remnant (SNR) G106.3+2.7 ha
 s two distinct regions\, the head and tail. The head region is home to a p
 ulsar (J2229+6114) and its pulsar wind nebula (G106.65+2.95) dubbed the 
 “Boomerang” nebula\, while the tail region contains the diffuse ejecta
  from the SN event. This SNR has been long thought to be a prime candidate
  for accelerating cosmic-rays up to PeV energies\, a source otherwise know
 n as a PeVatron\, but the complex nature of the region makes it difficult 
 to determine if one\, or both\, of the regions are a Pevatron. Both region
 s have recently been separated in the very-high-energy gamma-ray regime by
  the MAGIC and Fermi-LAT observatories. However\, due to poor angular reso
 lution of higher energy detectors\, the head and tail have not been separa
 tely identified above 30 TeV\, making it difficult to distinguish a hadron
 ic production mechanism over a leptonic mechanism. With more data and new 
 reconstruction algorithms\, including better angular resolution\, the HAWC
  Observatory is now able to distinguish the head and tail regions of this 
 SNR. We present the multi-wavelength modeling of both regions\, as well as
  possible sources for CR acceleration.\n\n \n\n \n\nQuantum Noise in Optic
 al Amplifiers Operating at Exceptional Points\n\nLucas Simonson [Advisor: 
 Dr. Ramy El-Ganainy]\n\nThe concept of exceptional points-based optical am
 plifiers (EPOAs) has been recently proposed as a new paradigm for miniatur
 izing optical amplifiers while simultaneously enhancing their gain-bandwid
 th product. While the operation of this new family of amplifiers in the cl
 assical domain provides a clear advantage\, their performance in the quant
 um domain has not yet been evaluated. Particularly\, it is not clear how t
 he quantum noise introduced by vacuum fluctuations will affect their opera
 tion. We investigate this problem by considering two archetypal EPOAs stru
 ctures and use the Heisenberg-Langevin formalism to calculate the added qu
 antum noise in each of these devices. Our analysis reveals several interes
 ting results: (1) The output noise level exceeds that of quantum-limited a
 mplifiers\; (2) The noise level does not follow a universal dependence on 
 the order of the exceptional point but rather varies from one implementati
 on to another.
GEO:47.119655;-88.548223
LOCATION:Fisher Hall\, 139
SUMMARY:Physics Colloquium - Graduate Student Presentations (Turner / Simon
 son)
URL;VALUE=URI:https://events.mtu.edu/event/physics_colloquium_-_graduate_st
 udent_presentations_turner_simonson
CATEGORIES:Academics
CATEGORIES:Lectures/Seminars
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