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Haroche Experiment

 Michon
 
 

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. French physicist born in 1944 inCasablanca. In 1963, he ranked first in thePolytechniqueentrance exam and third forENS,which he chose to enter. In 1971, he earned a doctorate under Cohen-Tannoudji. From 1974 to 1984, Haroche taught Quantum Mechanics at Polytechnique (the authorwas a student of his, in the Fall of 1977).  Serge Haroche held thechair of Quantum Mechanicsat the Collège de France  from2001to2015.

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"Atome habillé" (Haroche, 1967-1971) by Bernard Cagnac  (Universalis).
Serge Haroche, Ph.D. - Publications Academic Tree  (1975-2015).
16 thèses dirigées par Serge Haroche  (1988-2015).
Nobel Lab 360° Serge Haroche.
 
Cavity QuantumElectrodynamics  by S. Haroche  and D. Kleppner  (1989).
Cavity QED S. Haroche, J-M Raimond  (Scientific American, April 1993).
Death of a Photon...  Live  by Claire Le Poulennec   (CNRS, July 2007).
Serge Haroche: Photon Tamer (2009 CNRS Gold Medal) by Emilie Badin.
SergeHaroche: Héritier des prix Nobel français  (Laurent Sacco, 2009-06-19)
SergeHaroche on Quantum OpticsEmmanuelle Manck  (2009).
Interview with Serge Haroche   (Centre for Quantum Technologies, 2012).
 
2012Nobel Prize in physics   (Reuters, 2012-10-09).
Nobel 2012: Secret Life of Atoms  by Dennis Overbye  (NYT, 2012-10-09).
Haroche and WinelandWin Nobel in Physics  (The Guardian, 2012-10-09).
Nobel de physique 2012 Cyrille Vanlerberghe  (Le Figaro, 2012-10-09).
Serge Haroche,l'attrape-photons   (Sciences & Avenir,  2012-10-11).
Quantum Computing Winsa Nobel  by Joshua Rothman  (2012-10-12).
Tools for Quantum Tinkering:  2012 Nobel Prize  (APS, 2012-10-12).
Implications for quantum computing and security.  (Mocana, 2012-10-16).
Secrets of myprizewinning research  byS. Haroche  (Nature, 2012-10-17).
One step closer to thequantum future  byMarcelo Gleiser  (NPR, 2012-10-17).
Serge Haroche, Prix Nobel de Physique 2012 Michel Brune  (F2S, 2012-12).
Nobel Work: Congratulations  (Joint Quantum Institute, 2012-12-17).
Transcript of Serge Haroche'sNobel lecture   (Rev. Mod. Phys.85, 1083).
 
ZürichPhysics Colloquium withAndreas Wallraff  (ETH Zürich, 2013-11-06).
Confined quantum Zeno dynamics of a watched atomic arrow  (Nature, 2014).
Serge Haroche: Public Lectures at UBC   (CGF Vancouver, April-May 2015).
Peter Wall Institute for Advanced Studies   (UBC Vancouver, 2015).
Thought Experiments Made Real Raimond & Brune  (CDF, 2015-10-29).
International Boardof the Weizmann Institute of Science  (November 2015).
ExceptionalConference in Mulhouse  by Serge Haroche  (EPS, June 2016).
Putting Light in a Box: Haroche's Nobel Prize Winning Idea  (2016-10-19).
 Institut Français   (2017-01-17).
Jongler avecles atomes et les photons.    (2017-02-28).
SergeHaroche:  How I got there  by Lan Anh Vu  (Huffpost, 2017-03-17).
Serge Haroche ConCiencia  (, 2017-07-19).
Serge HarocheFestival de Ciencia (Puerto de Ideas, 2018-04).
L'effortsur la science a trop ralentiSerge Haroche  (Les Echos, 2021-05-24).
 

ISBN 0-19-850914-6  Exploring the Quantum:  Atoms, Cavities and Photons
bySerge Haroche andJean-Michel Raimond  (Oxford Graduate Texts, 2006).


 Serge Haroche, premier à l'X, troisième à Ulm (1963-12-06).
La physique quantique (1:12:08)  by  Serge Haroche (UTLS,2000-07-31).
Leçon inauguraledeSerge Harocheau Collège de France   (2001-12-13).
Serge Haroche, un arpenteur du monde quantique   (2009).
Electrodynamiquequantique en cavité  Serge Haroche   (SFP, Bordeaux 2011).
Quantum Feedback Control Serge Haroche  (Nordita Colloquium, 2011-10-18).
 
Official Presentation of the 2012 Nobel Prize in Physics  (2012-10-09).
Announcement of the Nobel Prize in Physics by Brady Haran  (2012-10-09).
How do we see lightMinute Physics  by Henry Reich  (2012-10-09).
Telephone interview  by Adam Smith  (nobelprize.org,  2012-10-10).
Serge Haroche, Prix Nobel de physique by Paul Indélicato  (2012-10-11).
Serge Haroche, Prix Nobel de physique 2012 (France-Inter, 2012-10-11).
L'étrangeté quantique: Serge Haroche  (Collège de France, Dec. 2012).
Nobel Lecture bySerge Haroche  (2012-12-08).
Nobel Lecture at UppsalaUniversity  (2012-12-13).
 
"L'enseignement et la recherche" by Serge Haroche  (2013-01-14).
Lindau Nobel LaureateMeetings:  Serge Haroche videos (2013, 2015, 2016).
Public Lecture and Q & A by  Serge Haroche  (IQC, May 2013).
Studies of decoherence by  Serge Haroche  (IQC, May 2013).
La physique quantique 100 ans aprèsBohr (1:40:31) Cité  (Oct. 2013).
Conférence de Serge Harocheà l'Ecole Polytechnique   (2014-03-27).
Shedding new light onSchrödinger's cat  (Schrödinger Lecture 2014, ICL).
Le chat de Schrödinger sous unnouvel éclairage. (ESPCI, 2015-01-15).
Light and the Quantum: Opening ceremony, 2015 International Year of Light.
Chats de Schrödinger etdécohérenceJean-Michel Raimond  (2015-01-29).
 Serge Haroche  (IHES, 2015-01-29).
Septième Tables Rondes del'Arbois  (Aix-en-Provence, March 2015).
Light and the Quantum Serge Haroche  (The Royal Institution, Nov. 2015).
Fifty Years of Revolutions in Laser Physics Serge Haroche  (CityU, 2015-11).
La lumière invisible by Serge Haroche  (end of IYL in France, Dec. 2015).
Serge Haroche at Bar-Ilan University (Doctor Honoris Causa, 2016-06-07).
Serge Harocheet la boîte à photons  (in French) Arte  (2016-07-05).
Message of Serge Harocheto Korean students  (KTN, 2016-09-20).
Light-filled box. Animation with the voice of Serge Haroche   (2016-09-26).
10 ans de La Tête au CarréLe complotisme ambiant  (2016-11-30).
Power & Strangeness of the Quantum(+Part 2)  by  S. Haroche  (ISC 2017).
Jongler avec des atomes et des photons by  Serge Haroche  (2017-02-28).
Puissance et étrangeté de la physique quantique (1:31:43) IPR  (2018-01-30).

Serge Haroche atSahyadri Conclave 2018:
  • 2018-01-07 09:00   [1  | 2 ]   Controlling a single photon in a box.
  • 2018-01-07 14:00   [1  | 2 ]   Walk the Talk.
  • 2018-01-08 11:30   [1  | 2 ]   How the laser has revolutionized physics.
  • 2018-01-08 14:00   [1  | 2 ]   Light, matter & water.
Serge Haroche visits ALMA antennas (, 2018-04-23).
Serge Haroche & David J. Wineland (69th Lindau meeting, 2019-07-03).
 
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 International Year of Light
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 International Year of Light

Counting Photons without Destroying Them


(2017-06-14)  

Family Roots :

Serge Haroche was born on 11 September 1944,  inCasablanca, to a Sephardic fatherand a Russian-bornAshkenazic mother.

  • His father :  Albert Haroche (1920-1998)  was a Rabat-trained lawyer whoseparents both worked as teachers at various schools of the Alliance Israélite (AIU)  network. They ended up heading the AIU boys' school and girls' school, respectively, inSalé  (across the river from Rabat) where Albert was one of their seven children. Both parents had been students at the AIU in their respective hometowns.
    • Isaac Haroche (1890-1962)  was born inMarrakesh. to the Harrosh  family of Marrakesh,  descendantsof Sephardim expelled from Spain by the Alhambra Decree  of 1492.
    • Esther Azerad (1893-1968)  was raised inTétouan where she attended the first AIU school, founded therein 1862.
     
  • His mother :  Valentine Roublev (1921-1998) was born inOdessato a family of physicians who left Ukraine in the early 1920s. They relocated to Casablanca because their Russian medical degrees were recognized in Morocco. Valentine met Albert Haroche in Rabat as she was studyingto become a teacher of French and German literature. (In Rabat, the Institute of Letters was created in 1912, the Institude of Law was created in 1920.)  At first,  Serge Haroche was home-schooled by his mother in French and Russian. He lost his Russian fluency when he started attending elementary school at the age of 6. The maternal grandparents of Serge Haroche were:
    • Alexandre Roublev (1897-1984). Apparently, he eventually left Morocco and relocated to the United States, obtaining a medicaldegree fromColumbia in 1958.
    • Sophie Roublev, née Fromstein  (1896-1977).

 Albert and Valentine Haroche had  5  children.  One died in infancy:
  1. Georges Haroche  (1942-1943).
  2. Serge Haroche  our subject  (b.1944, in Casablanca).
  3. Joël Haroche (b.1948) a.k.a. Josh Harel.  Lawyer,author. He is the father of the pop singer Raphaël (born 1975-11-07).
  4. Gilles Haroche Born in Casablanca (1951-09-20).  Physician:
  5. Michel Haroche,  born in Paris  (1959-2009).

Since 1965, Serge Haroche  has been married to the sociologist Claudine Haroche  (née Zeligson)  whose parents were married in 1936:

  • [Louis] Casimir Zeligson  was a successfularchitect.
  • Raymonde Zelligson  (née Sandberg)  passed away in 2008.

Serge and Claudine had been playmates as kids from the Jewish community of Russian émigrés  in Casablanca (so was Serge's younger brother Joël). They drifted apart for 15 years before meeting again in Paris,  by chance, in the Spring of 1964.  They have two grown children:

Early Life :

Like many French-educated Jewish families from Morocco,  the parentsof Serge Haroche relocated to France in1956, at the end of the French protectoratein Morocco.  Three of their sons  (Serge, Joël, Gilles)  wereborn in Morocco.  The fourth one  (Michel)  was born in Paris, in 1959.

Serge Haroche received his secondary education at the Lycée Carnot (Baccalauréat in 1961). Then he spent two years of classes préparatoires (Maths Sup, Maths Spé)  at the prestigious Lycée Louis-le-Grand. In the Summer of 1963,  Serge Haroche ranked first in thePolytechniqueentrance contest and third forENS,which he chose to enter. From 1963 to 1967,  Haroche was an  ENS  student in Paris, attending lectures by the likes of Alfred Kastler(1902-1984;Nobel 1966)  and Claude Cohen-Tanoudji(b. 1933;Nobel 1997), his future doctoral adviser.

He graduated in 1967 with an Agrégation and Doctorat de troisième cycle.

Career :

In 1971, Serge Haroche earned a doctorate from Pierre and Marie Curie University (UPMC,  Paris VI)  underClaude Cohen-Tannoudji. His doctoral examining committee was stellar.  It consisted of:

In 1972-1973,  Haroche was a post-doc in the lab of Art Schawlow (1921-1999;Nobel 1981) at Stanford.

From 1974 to 1984, Haroche taught Quantum Mechanics at Polytechnique (where, incidentally,the authorwas a student of his, in the Fall of 1977).

Serge Haroche was full professor at Paris VI  (UPMC)  from 1975 to 2001 andhead of the Physics department at the Ecole Normale Supérieure  from 1994 to 2000.

He held thechair of Quantum Mechanicsat the Collège de France  from2001 to 2015.  Shortly before receiving the Nobel Prize in 2012, he was elected Administrator of the Collège de France,  for a 3-year term.

In 2013,  Serge Haroche became a Commander in the French Legion of Honor.  He wasnominatedGrand Officer on 14 july 2017 (to take effect at a ceremony to be scheduled by himself, within two years).

Haroche is a member of the French Académie des sciences and a Foreign Member of the  US National Academy of Sciences.

 Niels Bohr  (1885-1962)  Albert Einstein  (1879-1955)
(2015-08-30)  
A paradox devised by Einstein  and solved by Niels Bohr.

In 1930, Einstein proposed a thought-experiment which seemed to refute the uncertainty principle applied to time and energy. The very foundations of Quantum Theory were threatened...

 Bohr-Einstein photon box At left is Bohr's own depiction of the apparatus that the Einsteinexperiment would involve. The box is supposed to trap photons indefinitely with perfectly reflective walls.

Einstein argued that a shutter can be opened for anarbitrarily small amount of time t measured  by the attached clock.

As the energy of the closed box can be determinedwith arbitrary precision by weighing it over long periods of time, so can the difference  E corresponding to light released at a time  t known with the aforementioned arbitrarily small precision  t.

E   =   ( M0 - M1) c 2

After a sleepless night, Bohr discovered the fallacy in Einstein's argumentusing, ironically, Einstein's own General Theory of Relativity:

 Come back later, we're still working on this one...


(2017-05-27)   (Herbert Walther, 1984)
The first time the strong coupling regime  of CQED was obtained.

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(2015-09-06)  

The Purcell effect  is the enhancement of the spontaneous emission rate of fluorescent atoms in a resonant cavity.

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(2015-09-06)  

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(2015-08-28)  
Excited atoms whose outermost electron orbits at a large distance.

Rydberg atom  is a neutral atom of either hydrogen orsome alkali metal whose outermost electron has a very high principal quantum number  (n). The Haroche group used mostly rubidium atoms  (Rb)  with n=50 and n=51.

Circular Rydberg atoms  are Rydberg atoms whose outer electronshave maximal orbital  (l)  and magnetic  (m)  quantum numbers.

 Come back later, we're still working on this one...


(2015-08-30)  
Quantum superposition  of two states  (n=50 & n=51) of aRydberg atom.

The superposition of two adjacent circular Rydberg states |g>  (n=50)  and  |e>  (n=51)  looks likea rotating electric dipole.

For rubidium  (Rb)  the transition between  |e>  and  |g>  correspondsto a microwave frequency of  51.099 GHz  (5.8669 mm wavelength).

 Come back later, we're still working on this one...


(2017-06-09)     (1963)
The JCM Hamiltonian describes a two-level atom in an optical cavity.

Frederick W. Cummings  was born in 1931  (New Orleans, LA) and obtained his Ph.D. atStanford in1962 under E. T. Jaynes (1922-1998).

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(2015-08-30)  
Polarized open cavity.

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(2015-09-05)  
Photons bounce 0.13 s between two copper mirrors coated with niobium.

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(2015-08-31)  
Quantum states corresponding to a well-defined number of particles.

Vladimir Aleksandrovich Fock  (1898-1974)  derived the Klein-Gordon equationin 1926.

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(2015-08-31)  
Conjugate quantity  of the number of photons.

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(2015-11-12)     (Roy J. Glauber, 1963)
States with a well-defined amplitude and phase.

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(2015-08-30)  

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(2015-09-05)  
Damped oscillations of an excited atom in an electromagnetic resonator.

|i> n=49

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(2015-08-30)     (Norman Ramsey, 1949)
The separated oscillatory field method.

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(2017-06-21)  
Solid-state equivalents of Haroche's experiment.

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(2018-06-22)  
The Haroche experiments have raised a number of different issues.

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