000147589 001__ 147589
000147589 005__ 20181203021840.0
000147589 0247_ $$2doi$$a10.1103/PhysRevLett.104.053001
000147589 022__ $$a0031-9007
000147589 02470 $$2ISI$$a000274336800010
000147589 037__ $$aARTICLE
000147589 245__ $$aLong-Lived Coherences for Homogeneous Line Narrowing in Spectroscopy
000147589 260__ $$bAmerican Physical Society$$c2010
000147589 269__ $$a2010
000147589 336__ $$aJournal Articles
000147589 520__ $$aLine broadening, which can arise from inhomogeneities or homogeneous relaxation effects that lead to finite lifetimes of quantum states, is the Achilles' heel of many forms of spectroscopy. We show that line broadening may be considerably reduced by exploiting long lifetimes associated with superpositions of quantum states with different symmetry, termed long-lived coherences. In proton NMR of arbitrary molecules (including proteins) in isotropic solution, the slow oscillatory decays of long-lived coherences can yield spectra with very high resolution. This improvement opens the way to high-field magnetic resonance of molecular assemblies that are almost an order of magnitude larger than could be hitherto studied. Coherences between states of different symmetry may be useful in other forms of spectroscopy to cancel unwanted line broadening effects.
000147589 6531_ $$aNuclear-Spin States
000147589 6531_ $$aNmr-Spectroscopy
000147589 6531_ $$aSinglet-States
000147589 6531_ $$aMagnetic-Fields
000147589 6531_ $$aRelaxation
000147589 6531_ $$aSystems
000147589 6531_ $$aMolecules
000147589 6531_ $$aDiffusion
000147589 6531_ $$aCouplings
000147589 6531_ $$aProteins
000147589 700__ $$0240609$$g169337$$aSarkar, Riddhiman
000147589 700__ $$0243178$$g173155$$aAhuja, Puneet
000147589 700__ $$g171399$$aVasos, Paul R.$$0240610
000147589 700__ $$aBodenhausen, Geoffrey$$g122795$$0243177
000147589 773__ $$j104$$tPhysical Review Letters$$k5$$q05300111/1-053001/4
000147589 909C0 $$xU10098$$0252152$$pLRMB
000147589 909CO $$pSB$$particle$$ooai:infoscience.tind.io:147589
000147589 917Z8 $$x148230
000147589 937__ $$aEPFL-ARTICLE-147589
000147589 973__ $$rNON-REVIEWED$$sPUBLISHED$$aEPFL
000147589 980__ $$aARTICLE