One of my habits during long meetings (particularly those of the Canadian Institute for Advanced Research<\/i> [CIfAR] Quantum Materials<\/i> program, where my brain’s digestive capacity was frequently exceeded) was to write haiku<\/i> about the speaker’s topic and\/or my own state of mind. Here are a few.<\/p>\n
photons knock me out,
\nleave behind the energy
\nyou would like to know.<\/p>\n
while I was a part
\nof the copper oxide plane
\nI was d<\/i>-wave dressed.<\/p>\n
quasiparticles
\nleave behind the signature
\nof what they once were.<\/p>\n
\n
U<\/i> \u00a0 AND \u00a0 \u0394<\/i><\/p>\n
Band theory fails
\nso we turn to “chemistry”:
\nlocalized ions.<\/p>\n
Review your atoms.
\nU<\/i> and \u0394<\/i> both depend
\non which orbitals.<\/p>\n
And U<\/i> and \u0394<\/i>
\nchoose a Mott insulator
\nor Zhang-Rice singlets.<\/p>\n
Doing it all right
\ngives t’<\/i> small and suggests
\na t-J<\/i> model.<\/p>\n
Spin waves almost work,
\ngive the peak in PES;
\n2D spinons next!<\/p>\n
\n
QUESTIONS?<\/i><\/p>\n
Who is this heckler?
\nI’d listen to George in this
\neven if he’s wrong.<\/p>\n
Dope a Hubbard chain:
\nthe spectral weight is transferred
\nfrom high to low E<\/i>.<\/p>\n
All you ego freaks
\nplease save your sniping speeches
\nuntil we are gone.<\/p>\n
Fermi surface? No.
\nIt’s not a metal! Maybe
\nthere’s a “Shen surface”.<\/p>\n
It’s hard enough to
\nfollow what the speaker says
\nsans<\/i> “annotations”.<\/p>\n
\n
HAMILTONIANS<\/i><\/p>\n
We can write down H<\/i>
\nbut we can’t find solutions
\nevery solid knows.<\/p>\n
\n
“The deeper reason why there are metals is, there just are.”<\/i><\/p>\n
We think we know all.
\nThen Nature throws us a curve
\nand we retrofit.<\/p>\n
\n
“The dogs that did nothing in the night:”<\/i> La4<\/sub>BaCu5<\/sub>O15<\/sub><\/p>\n EELS and optics show Stomach full, my brain Out come the big guns: “Shoulders of giants” – \n COHERENCE, DECOHERENCE & STRONGLY INTERACTING FERMIONS<\/i><\/p>\n Yo’ algorithm Calculating E<\/i>, \n Here come ol’ flattop, he come groovin’ up slowly…<\/i><\/p>\n Use the Principle \n THE NEST OF HORRIBLE PHONONS<\/i><\/p>\n Falling into the The neutron arrives, An electron lost What you cannot see The tiniest wire d<\/i>-wave junctions make I’ll make it smaller; Josephson junctions Holes in a layer I’m a fermion Whorls in the current 60K Tc<\/sub><\/i> Put in a muon; Holes like to be paired Let’s get together \n ODD BITS<\/i><\/p>\n FQHE and \n Priorities are: \n What was “Gossamer \n \n","protected":false},"excerpt":{"rendered":" One of my habits during long meetings (particularly those of the Canadian Institute for Advanced Research [CIfAR] Quantum Materials program, where my brain’s digestive capacity was frequently exceeded) was to write haiku about the speaker’s topic and\/or my own state of mind. Here are a few. ARPES photons knock meRead More…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-47","post","type-post","status-publish","format-standard","hentry","category-haiku"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/jick.ca\/index.php?rest_route=\/wp\/v2\/posts\/47","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jick.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jick.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jick.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jick.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=47"}],"version-history":[{"count":3,"href":"https:\/\/jick.ca\/index.php?rest_route=\/wp\/v2\/posts\/47\/revisions"}],"predecessor-version":[{"id":50,"href":"https:\/\/jick.ca\/index.php?rest_route=\/wp\/v2\/posts\/47\/revisions\/50"}],"wp:attachment":[{"href":"https:\/\/jick.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=47"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jick.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=47"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jick.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nMIR scenario:
\ninterlayer hops!<\/p>\n
\nloses the battle for blood;
\neyes will not focus.<\/p>\n
\nEvery talk is Laughlin’s talk.
\nIsn’t he a gas?<\/p>\n
\nstanding room for everyone –
\nMaybe they should shrug.<\/p>\n
\nGotta be ergodic if
\nya want convergence.<\/p>\n
\nrun the WORM internally;
\nGreen’s function “for free”!<\/p>\n
\nof Emergent Symmetry,
\nold states of matter.<\/p>\n
\nnest of horrible phonons,
\nresonance is lost.<\/p>\n
\nknocks on the crystal door and
\nleaves a gift of spin.<\/p>\n
\nits spin to one mode and its
\ncharge to another.<\/p>\n
\nis not necessarily
\nsomething that’s not there.<\/p>\n
\nmust suffer more than its share
\nof decoherence.<\/p>\n
\nspontaneous currents flow:
\nbutterfly qubits!<\/p>\n
\nwonderful devices if
\nyou make it super.<\/p>\n
\nof grains in a normal sea
\nare not what we see.<\/p>\n
\nmake an organic crystal
\nanything you want.<\/p>\n
\nwho transports charge but not heat.
\nWhat the hell am I?<\/p>\n
\ncome in quantized flux units
\nhc<\/i>\/q<\/i>.<\/p>\n
\nmediated by phonons?
\nThis cannot be!<\/p>\n
\nsomething averts its spin, though
\nyou leave it alone.<\/p>\n
\nfor the same reason spinons
\nenjoy being paired.<\/p>\n
\nwith lots of other couples
\nand make a ladder!<\/p>\n
\nFractionalization
\nare too hard for me.<\/p>\n
\nrenewal; gender balance;
\nmy guy needs a job.<\/p>\n
\nSuperconductivity”
\nnow is QPT.<\/p>\n