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Thoughts on My Physics Life in Progress
Premi ChandraDepartment of Physics and Astronomy
Rutgers University
Introduction
My Story (so far)
Two Current Research Projects
Suggestions
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Let me introduce myself.....I’m a materials-inspired theorist
What’s That??
A Visual Analogy from a (Great) Artist
Development of minimalist models for complex materials........with predictions for experiment!
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Something about My Story
My Multicultural Background
U.S.A.
Atlantic Ocean France
India
Poland
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My Grandmother (Poland)
My Grandparents (France)
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My Grandmother (India)
My Grandparentsand
My Parents(India)
My Grandmother,My Sister
and Me (USA)
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Childhood in New Jersey
Very Bad Asthma (Missed Two Years of School)
Don’t Give Up....
Start Swimming
Competitively !!
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College (Connecticut) In addition to classes.....
Childhood in New JerseyChildhood in New JerseyChildhood in New Jersey
Sports
Freshman Women’s Crew
Summer Research ProjectA Taste for Physics
outside the Classroom
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Senior Year: Feza and Sonya
Feza (Gursey) Sonya (Kovalevskaya)
Study of the Kovalevskaya Top using Modern Methods
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A Schematic History of my Professional Life after College
Industry Academia
(technician) (graduate student)
(summer student)
(visiting student fellowship)
(research scientist) (faculty)
(postdoctoral fellow)
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And Now for Some Physics .....
A Taste for Two of My Current Research Projects
(One “Blue Sky” and the Other More Applied)
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Background: Phase Transition and Broken Symmetries
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Background: Phase Transition and Broken Symmetries
Example: Ferromagnetism (Iron)
Broken Symmetry: Spin Rotation, Time-Reversal
Order Parameter: Magnetization
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Background: Phase Transition and Broken Symmetries
Example: Ferromagnetism (Iron)
Heat Capacity C(T): The amount of energyneeded to raise the temperature 1K
C(T) displaysstructure at
phase transitions !!
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URuSi
Large entropy of condensation.
�
The Mystery of URu2Si2
What is the nature of the hidden order?
=0.14 x 17.5 K =2.45 J/mol/K=0.42 R ln 2
Broken Symmetry: ??Order Parameter : ??
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Rebecca Flint Piers ColemanRebecca Flint
Our Approach to URu2Si2
Experiment
Phenomenology
Microscopic Model
Predictions for Future Experiment
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Rebecca Flint Piers ColemanRebecca Flint
Our Proposal for URu2Si2
Hastatic Order
hasta: spear (latin)
A Fundamentally New Way to BreakTime-Reversal Symmetry (TRS)
Broken Symmetry: Single and Double TRSOrder Parameter: Hybridization Spinor
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Rebecca Flint Piers ColemanRebecca Flint
Our Proposal for URu2Si2
Hastatic Order
A Fundamentally New Way to BreakTime-Reversal Symmetry (TRS)
But the predictions for experiment need some refinement....more work to be done!
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And Now for Something Completely Different.....
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Tremendous Advances in Synthesis of Artificially Structured Materials
Goal: Identify and characterize multicomponentheterostructures with desirable properties distinct and/or enhanced from those of its bulk parents
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Schematic of the Relationships between Different Components of the Project(Computation, Modelling and Experiment)
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My Additions to the Family Tree
England added to the mix!
My father-in-law, my husbandand me (Disneyland)
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My Additions to the Family Tree
Our Family (Turkey)
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Suggestions:
1. Prioritize, Organize and Simplify !!
2. Don’t Give Up When the Going Gets Tough !!
3. Develop a Life Support System !! (Exercise, Friends, Music, Knitting,
Kickboxing....)
4. If You Need Something, Recognize that YouCan Make It Happen -- and Let YourProfessors, Classmates and Friends
Help You !!
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Thank you very much
and
Best of Luck with Your Adventures(Scientific and Otherwise) !!