Darius Škarnulis (born October 21, 1977 in Alytus) is a Lithuanian race walker.
 Škarnulis represented Lithuania at the 2008 Summer Olympics in Beijing, and competed in the men's 50 km race walk, along with his teammate and twin brother Donatas.
 While his twin brother did not finish the walk, Darius received a final warning (a total of three red cards) for not following the proper form during the 10 km lap, and was subsequently disqualified.
Alberto Pérez Jiménez (May 15, 1975 – June 29, 2009) was a Mexican "Luchador" "enmascarado" who worked in the "Mini-Estrella" division from 1990 until his death in 2009.
 Alberto was best known under the ring name La Parkita, having used the name in Asistencia Asesoría y Administración (AAA), the Mexican Independent circuit and Chikara in the United States.
 Alberto's brother and twin brother are also "Mini-Estrella Luchadors" under the names Espectrito and Espectrito II.
 On June 29, 2009 Alberto and his twin brother Alejandro were killed by prostitutes in Mexico City.
Christopher M. Ferraro (born January 24, 1973) is an American retired ice hockey player who formerly played in the National Hockey League.
 Along with his twin brother, Peter, became the second set of identical twins to play on the same NHL team: the New York Rangers in the 1995–96 season.
 Chris and his twin brother Peter currently own an ice skating rink in East Meadow, NY.
Sonchat Ratiwatana (Last name pronounce : Ra-Ti-Wat) (Thai: สนฉัตร รติวัฒน์ 'ต้น') (born January 23, 1982 in Bangkok) is a professional tennis player from Thailand.
 In 2007, Sonchat and his twin brother Sanchai Ratiwatana won their first ATP doubles title in Bangkok in their home country.
 In the final, the team beat 2007 Wimbledon men's doubles winner Michaël Llodra and 2007 U.S. Open men's doubles semifinalist Nicolas Mahut.
 He reached his highest doubles ranking at world number 39 as of 28 April 2008.
 He plays right-handed and turned professional in 2004.
 He and his twin brother played in their first grand slam tournament during the Australian Open in 2008, where they lost to the eventual finalist pairing of Arnaud Clément & Michaël Llodra of France in the first round.
Jonathan Silver Scott (born John Ian Scott, April 28, 1978) is a Canadian reality television personality, contractor, illusionist, and television and film producer.
 He is best known as the co-host—along with his twin brother Drew—of the TV series "Property Brothers," as well as the program's spin-offs "Buying and Selling", "Brother Vs. Brother", and "Property Brothers: At Home", which are broadcast in the US on HGTV.
 Scott is also co-founder and executive producer of Scott Brothers Entertainment, which creates TV, film, and digital content for North American and international broadcasters.
 In addition to entertainment, the twins have launched the lifestyle brand Scott Living and its extension, Dream Homes.
 He splits his time between a home in Las Vegas, Nevada he shares with his twin brother, and a home in Toronto that he shares with his girlfriend.
Two is a Canadian drama series which aired from September 1996 to June 1997.
 It featured Michael Easton as Gus McClain, a college professor from Seattle who is framed for the murder of his wife by his twin brother Booth Hubbard (Easton in a dual role).
 Hubbard, whose existence had previously been unknown to McClain, committed several murders while assuming McClain's identity, leaving Gus on the run from the FBI.
 Complicating matters more was that Booth had a brain tumor that could kill him at any moment and leave Gus without a way to clear himself.
 The primary FBI investigator in the case was Theresa "Terry" Carter (Barbara Tyson), whose partner was a victim of Hubbard and does not believe his claims of a twin brother.
 It featured Andrew Sikes as a recurring character trying to help McClain.
Phillip Tabet (born July 1, 1987 in Michigan, United States) is a Lebanese professional basketball player currently playing for Champville SC in the Lebanese Basketball League.
 Tabet was put on the Lebanese Free Agent List to play for the national squad along with twin brother Charles Tabet.
 Tabet started his college career at the University of South Alabama before deciding to move to Lebanon to sign his first professional contract for the Lebanese green castle Hekmeh BC along with twin brother Charles.
 However, in 2014 Phillip split from his brother to join Beirut side Champville SC.
Herman Louis Verlinde (born 21 January 1962) is a Dutch theoretical physicist and string theorist.
 He is a professor at Princeton University.
 He is also the identical twin brother of Erik Verlinde.
Bonar Stewart Bain (February 4, 1923 – February 18, 2005) was a Canadian actor and the identical twin brother of actor Conrad Bain, who starred in the television sitcom "Diff'rent Strokes" as Phillip Drummond and "Maude" as Arthur Harmon.
 He once played a fictional “evil” twin to Conrad (“Hank Bain”) in an episode of "SCTV", as well as Arthur (Conrad Bain)'s twin brother Arnold on "Maude".
Erik Peter Verlinde (] ; born 21 January 1962) is a Dutch theoretical physicist and string theorist.
 He is the identical twin brother of physicist Herman Verlinde.
 The Verlinde formula, which is important in conformal field theory and topological field theory, is named after him.
 His research deals with string theory, gravity, black holes and cosmology.
 Currently, he works at the Institute for Theoretical Physics at the University of Amsterdam.

Question: At which university is the twin brother of the namesake of the Verlinde formula, employed as a professor?
Answer: Princeton University