Nergis Mavalvala

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Nergis Mavalvala
Born1968 (age 53–54)
NationalityPakistani, American
Known forInterferometric gravitational waves, quantum measurement
Awards2013 Joseph F. Keithley Award For Advances in Measurement Science, MacArthur Fellows
Scientific career
FieldsAstrophysics and Quantum Physics
InstitutionsWellesley College, Massachusetts Institute of Technology
ThesisAlignment issues in laser interferometric gravitational-wave detectors (1997)
Doctoral advisorRainer Weiss

Nergis Mavalvala (born 1968) is a Pakistani-American astrophysicist known for her role in the first observation of gravitational waves.[1] She is the Curtis and Kathleen Marble Professor of Astrophysics at the Massachusetts Institute of Technology (MIT), where she is also the Dean of the university's School of Science. She was previously the Associate Head of the university's Department of Physics[2] She was awarded a MacArthur Fellowship in 2010.[3][4][5]

Mavalvala is best known for her work on the detection of gravitational waves in the Laser Interferometer Gravitational-Wave Observatory (LIGO) project,[1][6][7] but has also obtained prominent results on other physics problems that evolved out of LIGO: for example, she has performed pioneering experiments on laser cooling of macroscopic objects and in the generation of squeezed quantum states of light.

Early life[edit]

Mavalvala was born in Lahore, but primarily raised in Karachi, Pakistan.[8] She attended the Convent of Jesus and Mary, Karachi, where she received her O-Level and A-Level qualifications. She moved to the United States in 1986 and enrolled at Wellesley College, where she received a bachelor's degree in physics and astronomy in 1990. Before she graduated in 1990, Mavalvala and her physics professor, Robert Berg, co-authored a paper in Physical Review B: Condensed Matter. She also helped set up his lab. She then joined Dr. Rainer Weiss's group in the MIT physics department, and received her PhD in 1997.

Born to a Parsi family,[9] Mavalvala was the younger of the two children. Her parents highly valued their daughters' educational experiences, and encouraged Mavalvala to pursue higher education overseas. Mavalvala was always interested in math and science as a child, and believed that she was intrinsically good at it, in contrast to the humanities.[10] Mavalvala was raised in the Zoroastrian faith.[7]

Personal life[edit]

Mavalvala identifies as a lesbian and speaks openly on her sexual orientation and family history as a Pakistani immigrant, describing herself as an "out, queer person of color."[11] Mavalvala stated that she was not aware of her sexual orientation until after college. Mavalvala is frequently questioned about how she was able to break through the barrier of gender roles and pursue a career of her choice. In an interview with the Pakistani newspaper Dawn, Mavalvala states, "I grew up in a family where the stereotypical gender roles were not really observed. So I grew up thinking women can, must and should do anything and everything. That is very important for me."[12] She also speaks about the ability of individuals in Pakistan to break gender roles and stigmas: "Anybody should be able to do those things. And I am proof of that because I am all of those things. With the right combination of opportunity, it was possible for me to do."[11]

Mavalvala is often viewed as a role model for aspiring female scientists with roots in the Indian subcontinent. As a young child Mavalvala was frequently involved in handy work, and was not bound to stereotypical gender roles in subcontinent culture, due to the manner in which her sister and she were raised. Mavalvala states that much of her success is accredited to good mentors in both the United States and Pakistan that encouraged her academic ability. In a television interview in 2016, Mavalvala stated, "When everyone has access to education that's when all the other things come into place... [You've] got to do what gives you pleasure, gotta find a way to do it. People should just do what they enjoy most and I think for all of society whether it's in Pakistan or elsewhere we have to create opportunities for young girls to do what they're good at and do what they love to do must cultivate the sense of wonder in a child."[13]

Mavalvala and her partner have two children and reside in Cambridge, Massachusetts in the United States. Mavalvala has extended family in Karachi and visited the city in 2010.[1][14][15][16][17]


As a graduate student at MIT, she conducted her doctoral work under Dr. Rainer Weiss, where Mavalvala developed a prototype laser interferometer for detecting gravitational waves.[18] After graduate school, she worked as a postdoctoral researcher and then as a research scientist at the California Institute of Technology, starting her work with cosmic microwave background,[19] and then eventually working on the LIGO.[1] Mavalvala focuses primarily on two fields of physics: Gravitational Waves Astrophysics and quantum measurement science.[20] Dr. Mavalvala joined the MIT physics faculty in 2002.[1] In 2017 she was elected to the National Academy of Sciences.[21]

Detection of gravitational waves[edit]

Mavalvala was among the team of scientists who, for the first time, observed ripples in the fabric of spacetime called gravitational waves. Mavalvala has been working on gravitational waves since 1991.[20] The observation was announced to the public on 11 February, 2016. The detection confirmed a major prediction of Albert Einstein's 1915 general theory of relativity.[9]

After the announcement of the observation, she became an instant celebrity scientist in her birthplace of Pakistan. Talking to the press she claimed that "we are really witnessing the opening of a new tool for doing astronomy"[22][23]

During an interview with Pakistani newspaper Dawn, after the detection of gravitational waves, she claimed that she was baffled by public interest in her research in Pakistan. She said "I really thought of what I want people to know in Pakistan as I have garnered some attention there. Anybody should be able to succeed — whether you're a woman, a religious minority or whether you're gay. It just doesn't matter."[14] In a statement by the Prime Minister of Pakistan, Nawaz Sharif, the Prime Minister praised Mavalvala, calling her a source of inspiration for Pakistani scientists and students aspiring to become future scientists. He also stated that "the entire nation is proud of her valuable contribution."[24]

On 20 February 2016, Ambassador of Pakistan to the United States, Jalil Abbas Jilani, conveyed the Government of Pakistan's message of felicitation to Mavalvala for her outstanding achievement in the field of astrophysics. He also invited her to re-visit Pakistan, which she accepted.[14][25][26][27]

Laser cooling[edit]

Optical cooling of mirrors to nearly absolute zero can help eliminate measurement noise arising from thermal vibrations. A portion of Mavalvala's work focused on the extension of laser-cooling techniques to optically cool and trap more and more massive objects, both for the LIGO project and for other applications, such as to enable observation of quantum phenomena in macroscopic objects. Prominent results from her group in this area included cooling of a centimeter-scale object to a temperature of 0.8 kelvins and observation of a 2.7-kilogram pendulum near its quantum ground state. These experiments lay the foundations for observing quantum behavior in human-scale objects.[28][29]

Quantum states of light[edit]

Mavalvala has also worked on the development of exotic quantum states of light, and in particular the generation of light in squeezed coherent states.[30][31] By injecting such states into the kilometer-scale Michelson interferometer of the LIGO detectors, her group greatly improved the sensitivity of the detector by reducing quantum noise;[31] such squeezed states also have many other applications in experimental physics.

Awards and recognition[edit]

Further reading[edit]

  • Ganguly, Prabarna (23 November 2017). "Meet the Barrier-Breaking Physicist Hunting Gravity With Lasers". Massive Science. Northeastern University.


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  2. ^ "Nergis Mavalvala - MIT Department of Physics". Massachusetts Institute of Technology. Retrieved 18 February 2016.
  3. ^ "Nergis Mavalvala - MacArthur Foundation". MacArthur Foundation. Retrieved 18 February 2016.
  4. ^ "Nergis Mavalvala and Five Exceptional Stories Of Women In STEM". AutoStraddle. 24 February 2016. Retrieved 25 February 2016.
  5. ^ Chu, Jennifer. "Nergis Mavalvala named School of Science dean". MIT. Retrieved 18 August 2020.
  6. ^ "MIT Kavli Institute Directory - MIT Kavli Institute for Astrophysics and Space Research". Massachusetts Institute of Technology. Retrieved 18 February 2016.
  7. ^ a b Krishnan, Madhuvanti S. (25 February 2016). "Making waves". The Hindu. Retrieved 25 February 2016.
  8. ^ "Nergis Mavalvala named School of Science dean". Massachusetts Institute of Technology. Retrieved 18 August 2020.
  9. ^ a b "Pak born scientist played significant role in discovery of gravitational waves". Business Standard India. 13 February 2016. Retrieved 25 February 2016.
  10. ^ Nergis Mavalvala: The Karachiite who went on to detect Einstein's gravitational waves. (2016, February 13). Retrieved March 25, 2018, from
  11. ^ a b VenkatramanJun, V., PainApr, E., PainMar, E., NobeliFeb, I., & PainSep, E. (2017, December 10). Gravitational wave researcher succeeds by being herself. Retrieved March 25, 2018, from [ ]
  12. ^ Rehman, Atika (15 February 2016). "Nergis Mavalvala, Pakistan's unexpected celebrity scientist". DAWN.COM. Retrieved 3 December 2021.
  13. ^ Neo Tv Network - Exclusive Interview Of Nerjis Mavalvala [Television broadcast]. (2016, February 17). In News. Karachi, Pakistan: Neo TV.
  14. ^ a b c "Nergis Mavalvala, Pakistan's unexpected celebrity scientist". DAWN. 15 February 2016. Retrieved 18 February 2016.
  15. ^ "Karachi bike repairman inspired Mavalvala". Express Tribune. 15 February 2016. Retrieved 18 February 2016.
  16. ^ "Meet The Queer Woman Who Proved Einstein's Theory About Gravitational Waves". NewNowNext. Retrieved 19 February 2016.
  17. ^ "Interview of Nargis Mavalvala". YouTube. Retrieved 6 April 2016.
  18. ^ "Nergis Mavalvala". TEDxCLE. Retrieved 25 February 2016.
  19. ^ Pakistan-born scientist played part in discovery of gravitational waves. (2016, February 13). Retrieved March 25, 2018, from
  20. ^ a b "Welcome to the Page of Nergis Mavalvala".
  21. ^ "Press release: National Academy of Sciences elects six MIT professors for 2017". MIT News. 3 May 2017.
  22. ^ "Here's How It Felt to Discover Gravitational Waves (Kavli Hangout)". 20 February 2016. Retrieved 25 February 2016.
  23. ^ "Einstein's gravitational waves detected". InDaily. 11 February 2016. Retrieved 25 February 2016.
  24. ^ "PM praises Pakistani scientist who played key role in discovery of gravitational waves". Express Tribune. 15 February 2016. Retrieved 18 February 2016.
  25. ^ "PROF DR NERGIS MAVALVALA TO VISIT PAKISTAN". Pakistan Observer. Archived from the original on 3 March 2016. Retrieved 25 February 2016.
  26. ^ "Jilani conveys PM's greetings to Pakistani-US scientist". Radio Pakistan. Archived from the original on 1 March 2016. Retrieved 25 February 2016.
  27. ^ "Would Nergis Mavalvala have made it had she stayed in Pakistan?". The Express Tribune. 16 February 2016. Retrieved 25 February 2016.
  28. ^ Berardelli, Phil (9 April 2007). "Reflections of Absolute Zero". Science.
  29. ^ "Press release: Laser-cooling brings large object near absolute zero". MIT News. 5 April 2007.
  30. ^ Dave Reitze, Squeezed Light Experiment a Glowing Success!, LIGO Laboratory News (28 October 2011).
  31. ^ a b Ulrik L. Andersen, Quantum optics: Squeezing more out of LIGO, Nature Photonics: News and Views, volume 7, pp. 589–590 (2013).
  32. ^ "Nergis first recipient of Lahore Technology Award". The Nation. Retrieved 19 December 2017.
  33. ^ "ITU convocation: MIT's Nergis Mavalvala given Lahore Technology Award - The Express Tribune". The Express Tribune. 18 December 2017. Retrieved 19 December 2017.
  34. ^ Carnegie Corporation of New York. "2017 Great Immigrants Honorees". Retrieved 29 November 2018.
  35. ^ "Gruber Prize in Cosmology Laureate 2016". Retrieved 17 August 2020.
  36. ^ "Special Fundamental Breakthrough Prize 2016". Retrieved 17 August 2020.
  37. ^ "NOGLSTP Recognition Awards to Atherton, Bland, Burke, and Mavalvala". NOGLSTP. Retrieved 20 February 2019.
  38. ^ "2014 OSA Fellows". Retrieved 17 August 2020.
  39. ^ "2013 Joseph F. Keithley Award for Advances in Measurement Science Recipient". Retrieved 17 August 2020.
  40. ^ "Nergis Mavalvala Fellow Profile". Retrieved 17 August 2020.
  41. ^ "APS Fellow Archive 2010". Retrieved 17 August 2020.
  42. ^ "Harold E. Edgerton Faculty Achievement Award History". Retrieved 17 August 2020.
  43. ^ "Sloan Research Fellow archive". Retrieved 17 August 2020.
  44. ^ "Phyllis J. Fleming Award". Retrieved 17 August 2020.

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