Benjamin L. Lev

Last updated
Benjamin L. Lev
BornSeptember 9, 1977 (1977-09-09) (age 46)
Colorado Springs, CO
Alma mater Princeton University (A.B.)
Caltech (Ph.D.)
Known for Quantum many-body physics:
Awards
Scientific career
Fields
Institutions Stanford University
Doctoral advisor Hideo Mabuchi
Other academic advisors Jun Ye (postdoc)
Website levlab.stanford.edu

Benjamin Leonard Lev is an American physicist and Professor of Physics and Applied Physics at Stanford University. [2] [3] [4] [5] He studies quantum many-body physics, both in and out of equilibrium, by combining the tools of ultracold atomic physics, quantum optics, and condensed matter physics.

Contents

Biography

Lev grew up in Crystal River, Florida, and attended Crystal River High School. He received his physics bachelor's degree magna cum laude from Princeton in 1999 and his physics Ph.D. from Caltech in 2005, working with Hideo Mabuchi. Lev was an NRC postdoc [6] at JILA with (2006-2007) Jun Ye and an assistant professor at the University of Illinois at Urbana-Champaign (2008-2011). He joined the Stanford faculty in 2011, where he is now lllProfessor of lllPhysics [3] and Applied Physics [4] and runs a quantum many-body physics research lab. [7]

Work

Lev's research focuses on exploring quantum many-body physics, especially in nonequilibrium settings. The contributions of his group include:

Awards and fellowships

Lev has received several awards for his work, including a Presidential Early Career Award for Scientists and Engineers (PECASE) from President Obama. [24] [25] and a Packard Foundation Fellowship, [26] as well as National Science Foundation CAREER Award [27] and Air Force Office of Scientific Research, DARPA, and Office of Naval Research Young Investigator Program awards. [28] [29] [30] Lev was elected a fellow of the American Physical Society [31] ``for groundbreaking experiments on quantum gases of lanthanide atoms with large magnetic dipole moments, theoretically proposing and experimentally demonstrating many-body multimode cavity QED for many-body physics and the demonstration of novel scanning quantum gas imaging of quantum materials." He serves on the editorial board of Physical Review X [32]

Related Research Articles

<span class="mw-page-title-main">Bose–Einstein condensate</span> State of matter

In condensed matter physics, a Bose–Einstein condensate (BEC) is a state of matter that is typically formed when a gas of bosons at very low densities is cooled to temperatures very close to absolute zero. Under such conditions, a large fraction of bosons occupy the lowest quantum state, at which microscopic quantum mechanical phenomena, particularly wavefunction interference, become apparent macroscopically.

<span class="mw-page-title-main">Dysprosium</span> Chemical element, symbol Dy and atomic number 66

Dysprosium is the chemical element with the symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a free element, though, like other lanthanides, it is found in various minerals, such as xenotime. Naturally occurring dysprosium is composed of seven isotopes, the most abundant of which is 164Dy.

<span class="mw-page-title-main">Roton</span> Collective excitation in superfluid helium-4 (a quasiparticle)

In theoretical physics, a roton is an elementary excitation, or quasiparticle, seen in superfluid helium-4 and Bose–Einstein condensates with long-range dipolar interactions or spin-orbit coupling. The dispersion relation of elementary excitations in this superfluid shows a linear increase from the origin, but exhibits first a maximum and then a minimum in energy as the momentum increases. Excitations with momenta in the linear region are called phonons; those with momenta close to the minimum are called rotons. Excitations with momenta near the maximum are called maxons.

<span class="mw-page-title-main">Supersolid</span> State of matter

In condensed matter physics, a supersolid is a spatially ordered material with superfluid properties. In the case of helium-4, it has been conjectured since the 1960s that it might be possible to create a supersolid. Starting from 2017, a definitive proof for the existence of this state was provided by several experiments using atomic Bose–Einstein condensates. The general conditions required for supersolidity to emerge in a certain substance are a topic of ongoing research.

In physics, a Tonks–Girardeau gas is a Bose gas in which the repulsive interactions between bosonic particles confined to one dimension dominate the system's physics. It is named after physicists Marvin D. Girardeau and Lewi Tonks. It is not a Bose–Einstein condensate as it does not demonstrate any of the necessary characteristics, such as off-diagonal long-range order or a unitary two-body correlation function, even in a thermodynamic limit and as such cannot be described by a macroscopically occupied orbital in the Gross–Pitaevskii formulation.

<span class="mw-page-title-main">Spin ice</span>

A spin ice is a magnetic substance that does not have a single minimal-energy state. It has magnetic moments (i.e. "spin") as elementary degrees of freedom which are subject to frustrated interactions. By their nature, these interactions prevent the moments from exhibiting a periodic pattern in their orientation down to a temperature much below the energy scale set by the said interactions. Spin ices show low-temperature properties, residual entropy in particular, closely related to those of common crystalline water ice. The most prominent compounds with such properties are dysprosium titanate (Dy2Ti2O7) and holmium titanate (Ho2Ti2O7). The orientation of the magnetic moments in spin ice resembles the positional organization of hydrogen atoms (more accurately, ionized hydrogen, or protons) in conventional water ice (see figure 1).

The Bose–Hubbard model gives a description of the physics of interacting spinless bosons on a lattice. It is closely related to the Hubbard model that originated in solid-state physics as an approximate description of superconducting systems and the motion of electrons between the atoms of a crystalline solid. The model was introduced by Gersch and Knollman in 1963 in the context of granular superconductors. The model rose to prominence in the 1980s after it was found to capture the essence of the superfluid-insulator transition in a way that was much more mathematically tractable than fermionic metal-insulator models.

In condensed matter physics, an ultracold atom is an atom with a temperature near absolute zero. At such temperatures, an atom's quantum-mechanical properties become important.

Atomtronics is an emerging type of computing consisting of matter-wave circuits which coherently guide propagating ultra-cold atoms. The systems typically include components analogous to those found in electronic or optical systems, such as beam splitters and transistors. Applications range from studies of fundamental physics to the development of practical devices.

In physics, the super-Tonks–Girardeau gas represents an excited quantum gas phase with strong attractive interactions in a one-dimensional spatial geometry.

<span class="mw-page-title-main">Superfluidity</span> Fluid which flows without losing kinetic energy

Superfluidity is the characteristic property of a fluid with zero viscosity which therefore flows without any loss of kinetic energy. When stirred, a superfluid forms vortices that continue to rotate indefinitely. Superfluidity occurs in two isotopes of helium when they are liquefied by cooling to cryogenic temperatures. It is also a property of various other exotic states of matter theorized to exist in astrophysics, high-energy physics, and theories of quantum gravity. The theory of superfluidity was developed by Soviet theoretical physicists Lev Landau and Isaak Khalatnikov.

<span class="mw-page-title-main">Time crystal</span> Structure that repeats in time; a novel type or phase of non-equilibrium matter

In condensed matter physics, a time crystal is a quantum system of particles whose lowest-energy state is one in which the particles are in repetitive motion. The system cannot lose energy to the environment and come to rest because it is already in its quantum ground state. Because of this, the motion of the particles does not really represent kinetic energy like other motion; it has "motion without energy". Time crystals were first proposed theoretically by Frank Wilczek in 2012 as a time-based analogue to common crystals – whereas the atoms in crystals are arranged periodically in space, the atoms in a time crystal are arranged periodically in both space and time. Several different groups have demonstrated matter with stable periodic evolution in systems that are periodically driven. In terms of practical use, time crystals may one day be used as quantum computer memory.

Immanuel Bloch is a German experimental physicist. His research is focused on the investigation of quantum many-body systems using ultracold atomic and molecular quantum gases. Bloch is known for his work on atoms in artificial crystals of light, optical lattices, especially the first realization of a quantum phase transition from a weakly interacting superfluid to a strongly interacting Mott insulating state of matter.

<span class="mw-page-title-main">Quantum simulator</span> Simulators of quantum mechanical systems

Quantum simulators permit the study of a quantum system in a programmable fashion. In this instance, simulators are special purpose devices designed to provide insight about specific physics problems. Quantum simulators may be contrasted with generally programmable "digital" quantum computers, which would be capable of solving a wider class of quantum problems.

<span class="mw-page-title-main">Tilman Esslinger</span> German physicist

Tilman Esslinger is a German experimental physicist. He is Professor at ETH Zurich, Switzerland, and works in the field of ultracold quantum gases and optical lattices.

Bose–Einstein condensation can occur in quasiparticles, particles that are effective descriptions of collective excitations in materials. Some have integer spins and can be expected to obey Bose–Einstein statistics like traditional particles. Conditions for condensation of various quasiparticles have been predicted and observed. The topic continues to be an active field of study.

Sandro Stringari is an Italian theoretical physicist, who has contributed to the theory of quantum many-body physics, including atomic nuclei, quantum liquids and ultra-cold atomic Bose and Fermi gases. He has developed in a systematic way the sum rule approach to the collective behavior of interacting systems.

Francesca Ferlaino is an Italian-Austrian experimental physicist known for her research on quantum matter. She is a professor of physics at the University of Innsbruck.

<span class="mw-page-title-main">Monika Aidelsburger</span> German quantum physicist

Monika Aidelsburger is a German quantum physicist, Professor and Group Leader at the Ludwig Maximilian University of Munich. Her research considers quantum simulation and ultra cold atomic gases trapped in optical lattices. In 2021, she was awarded both the Alfried-Krupp-Förderpreis and Klung Wilhelmy Science Award.

Silke Ospelkaus-Schwarzer is a German experimental physicist who studies ultra-cold molecular materials at the University of Hanover Institute of Quantum Optics. She was awarded a European Research Council Consolidator Award in 2022.

References

  1. ↑ "The David and Lucile Packard Foundation". The David and Lucile Packard Foundation. 2022-08-30. Retrieved 2023-03-11.
  2. ↑ "Benjamin Lev's Profile". Stanford Profiles. Retrieved 2023-03-11.
  3. 1 2 "Benjamin Lev". Physics Department. Retrieved 2023-03-11.
  4. 1 2 "Benjamin Lev". Applied Physics Department. 2021-11-10. Retrieved 2023-03-11.
  5. ↑ "Prof. Benjamin Lev". Lev Lab. 2021-11-10. Retrieved 2023-03-11.
  6. ↑ "NRC postdoc". nationalacademies.org. Retrieved March 8, 2023.
  7. ↑ "Lev Lab". Home. 2013-05-30. Retrieved 2023-03-11.
  8. ↑ Lu, M.; Youn, S.-H.; Lev, B. (2010). "Trapping Ultracold Dysprosium: A Highly Magnetic Gas for Dipolar Physics". Physical Review Letters. 104 (6): 063001. arXiv: 0912.0050 . Bibcode:2010PhRvL.104f3001L. doi:10.1103/physrevlett.104.063001. PMID   20366817. S2CID   7614035.
  9. ↑ Lu, M.; Burdick, N.; Youn, S.-H.; Lev, B. (2011). "Strongly Dipolar Bose-Einstein Condensate of Dysprosium". Physical Review Letters. 107 (19): 190401. arXiv: 1108.5993 . Bibcode:2011PhRvL.107s0401L. doi:10.1103/physrevlett.107.190401. PMID   22181585. S2CID   21945255.
  10. ↑ Lu, M.; Burdick, N.; Lev, B. (2012). "Quantum Degenerate Dipolar Fermi Gas". Physical Review Letters. 108 (21): 215301. arXiv: 1202.4444 . Bibcode:2012PhRvL.108u5301L. doi:10.1103/physrevlett.108.215301. PMID   23003275. S2CID   15650840.
  11. 1 2 Chomaz, L.; Ferrier-Barbut, I.; Ferlaino, F.; Laburthe-Tolra, B.; Lev, B.; Pfau, T. (2022). "Dipolar physics: a review of experiments with magnetic quantum gases". Rep. Prog. Phys. 86 (2): 026401. arXiv: 2201.02672 . doi:10.1088/1361-6633/aca814. PMID   36583342. S2CID   245837061.
  12. ↑ Martin, W C; Zalubas, R; Hagan, L (January 1978). "Atomic energy levels - the rare earth elements". OSTI.GOV. OSTI   6507735 . Retrieved 2023-03-11.
  13. ↑ Lahaye, T; Menotti, C; Santos, L; Lewenstein, M; Pfau, T (2009-11-19). "The physics of dipolar bosonic quantum gases". Reports on Progress in Physics. IOP Publishing. 72 (12): 126401. arXiv: 0905.0386 . Bibcode:2009RPPh...72l6401L. doi:10.1088/0034-4885/72/12/126401. ISSN   0034-4885. S2CID   4888923.
  14. 1 2 Kao, W.; Li, K.-Y.; Lin, K.Y.; Gopalakrishnan, S.; Lev, B. (2021). "Topological pumping of a 1D dipolar gas into strongly correlated prethermal states". Science. 371 (6526): 296–300. arXiv: 2002.10475 . Bibcode:2021Sci...371..296K. doi:10.1126/science.abb4928. PMID   33446558. S2CID   231606819.
  15. 1 2 Kubota, T. (2021-01-14). "New state of matter in one-dimensional quantum gas". Stanford News. Retrieved 2023-03-11.
  16. ↑ Guo, Yudan; Kroeze, Ronen M.; Marsh, Brendan P.; Gopalakrishnan, Sarang; Keeling, Jonathan; Lev, Benjamin L. (2021). "An optical lattice with sound". Nature. 599 (7884): 211–215. arXiv: 2104.13922 . Bibcode:2021Natur.599..211G. doi:10.1038/s41586-021-03945-x. PMID   34759361. S2CID   233423569.
  17. ↑ Kubota, T. (2021-11-10). "Adding sound to quantum simulations". Stanford News. Retrieved 2023-03-10.
  18. ↑ Vaidya, V.; Guo, Y.; Kroeze, R.; Ballantine, K.; Kollár, A.; Keeling, J.; Lev, B. (2017). "Tunable-range, photon-mediated atomic interactions in multimode cavity QED". Physical Review X. 8: 011002. doi:10.1103/physrevx.8.011002. hdl: 10023/12271 . S2CID   41635927.
  19. ↑ Yang, F.; Kollár, A.; Taylor, S.; Turner, R.; Lev, B. (2017). "Scanning Quantum Cryogenic Atom Microscope". Physical Review Applied. 7 (3): 034026. arXiv: 1608.06922 . Bibcode:2017PhRvP...7c4026Y. doi:10.1103/physrevapplied.7.034026. S2CID   41496962.
  20. ↑ Wildermuth, S.; Hofferberth, S.; Lesanovsky, I.; Haller, E.; Andersson, L.-M.; Groth, S.; Bar-Joseph, I.; Krüger, P.; Schmiedmayer, J. (2005). "Microscopic magnetic-field imaging". Nature. Springer Science and Business Media LLC. 435 (7041): 440. doi: 10.1038/435440a . ISSN   0028-0836. PMID   15917796. S2CID   11297149.
  21. ↑ Yang, F.; Taylor, S.; Edkins, S.; Palmstrom, J.; Fisher, I.; Lev, B. (2020). "Nematic transitions in iron pnictide superconductors imaged with a quantum gas". Nature Physics. 16 (5): 514–519. arXiv: 1907.12601 . Bibcode:2020NatPh..16..514Y. doi:10.1038/s41567-020-0826-8. S2CID   256705047.
  22. ↑ Analytis, J. (2020). "Cooking with quantum gas". Nature Physics. 16 (5): 506–507. Bibcode:2020NatPh..16..506A. doi:10.1038/s41567-020-0861-5. S2CID   256706581.
  23. ↑ Harris, M. (2020-11-27). "Ultracold atoms put high-temperature superconductors under the microscope – Physics World". Physics World. Retrieved 2023-03-11.
  24. ↑ "President Obama Honors Outstanding Early-Career Scientists". whitehouse.gov. 2011-09-26. Retrieved 2023-03-11.
  25. ↑ "President Obama Names Top U.S. Early Career Scientists and Engineers". NSF. 2011-10-17. Retrieved 2023-03-11.
  26. ↑ "Lev, Benjamin". The David and Lucile Packard Foundation. 2018-08-16. Retrieved 2023-03-11.
  27. ↑ "Benjamin Lev Receives NSF CAREER Award". UIUC Physics Department. Retrieved 2023-03-11.
  28. ↑ "AFOSR YIP Awards". af.mil. 16 October 2008. Retrieved March 8, 2023.
  29. ↑ "DARPA YFA Awards". darpa.mil. Retrieved March 8, 2023.
  30. ↑ "ONR YIP Awards". navy.mil. Retrieved March 8, 2023.
  31. ↑ "APS Fellow Archive". aps.org. Retrieved March 8, 2023.
  32. ↑ "Physical Review X Editorial Board". aps.org. Retrieved March 8, 2023.

External media

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.