Jay Man - Academia.edu (original) (raw)

Papers by Jay Man

Research paper thumbnail of 捕捉ガスにおける相互作用の調整によるBerezinskii-Kosterlitz-Thouless及びBEC相転移の結合

Physical Review Letters, 2015

Research paper thumbnail of Research data supporting 'Two- and Three-body Contacts in the Unitary Bose Gas

The repository contains the raw Ramsey oscillation data that were used to extract the figure data... more The repository contains the raw Ramsey oscillation data that were used to extract the figure data points.

Research paper thumbnail of Audiovisual Reviews

Journal of Sex & Marital Therapy, 1976

Research paper thumbnail of Audiovisual Reviews

Journal of Sex & Marital Therapy, 1976

PHYSIOLOGICAL RESPONSES OF THE SEXUALLY STIMULATED MALE IN THE LABORATORY16mm, 16 minutes, color,... more PHYSIOLOGICAL RESPONSES OF THE SEXUALLY STIMULATED MALE IN THE LABORATORY16mm, 16 minutes, color, optical sound. Source: Focus International, Inc., 505 West End Avenue, New York, N. Y. 10024. Preview–$29.00; rental–$50.00; purchase-$290.00.THE MALE TRANSVESTITE; THE WAY OF THE TRANSSEXUAL: THE HARDEST DECISIONS; and THE WAY OF THE TRANSSEXUAL: THE STORY OF JOANNAudiotapes, 45 minutes each, sound. Source: Personal Counseling Service, Inc.,

Research paper thumbnail of Review of human sexuality film perspective

Journal of Sex & Marital Therapy, 1974

Research paper thumbnail of Two and Three-body Contacts in the Unitary Bose Gas

In many-body systems governed by pairwise contact interactions, a wide range of observables is li... more In many-body systems governed by pairwise contact interactions, a wide range of observables is linked by a single parameter, the two-body contact, which quantifies two-particle correlations. This profound insight has transformed our understanding of strongly interacting Fermi gases. Here, using Ramsey interferometry, we study coherent evolution of the resonantly interacting Bose gas, and show that it cannot be explained by only pairwise correlations. Our experiments reveal the crucial role of three-body correlations arising from Efimov physics, and provide a direct measurement of the associated three-body contact.

Research paper thumbnail of Elliptic flow in a strongly-interacting normal Bose gas

We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisot... more We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that in our system this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalising power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes.

Research paper thumbnail of Connecting Berezinskii-Kosterlitz-Thouless and BEC phase transitions by tuning interactions in a trapped gas

We study the critical point for the emergence of coherence in a harmonically trapped two-dimensio... more We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with the classical-field predictions for the critical point of the Berezinskii-Kosterlitz-Thouless (BKT) superfluid transition. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely quantum-statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.

Research paper thumbnail of Research data supporting 'Two- and Three-body Contacts in the Unitary Bose Gas

The repository contains the raw Ramsey oscillation data that were used to extract the figure data... more The repository contains the raw Ramsey oscillation data that were used to extract the figure data points.

Research paper thumbnail of Hydrodynamics of a unitary Bose gas

Bulletin of the American Physical Society, 2016

Research paper thumbnail of Unification of BKT and BEC Phase Transitions in a Trapped Two-Dimensional Bose Gas

We study the critical point for the emergence of coherence in a harmonically trapped two-dimensio... more We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional (2d) Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with predictions based on the Berezinskii-Kosterlitz-Thouless (BKT) theory of 2d superfluidity. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.

Research paper thumbnail of Clock shifts in the Unitary Bose Gas

Submitted for the DAMOP16 Meeting of The American Physical Society Clock shifts in the Unitary Bo... more Submitted for the DAMOP16 Meeting of The American Physical Society Clock shifts in the Unitary Bose Gas RICHARD FLETCHER, JAY MAN, RAPHAEL LOPES, NIR NAVON, ROBERT SMITH, ZORAN HADZ-IBABIC, University of Cambridge-Clock shifts are interaction-induced changes in the transition frequency between atomic spin states. So-called because of their importance as systematic errors in atomic clocks, they reveal details of both the interaction energy within a gas and the particle correlations. In this work, we employ a RF-injection technique to rapidly project a thermal Bose gas into the unitary regime on a timescale much shorter than three-body losses. Working with a two-state system, one of which exhibits strong intrastate interactions, we carry out Ramsey spectroscopy to extract the variation in the clock shift across a Feshbach resonance. Thanks to the relationship between these shifts and particle correlations, we use our measurements to infer the contact as a function of both interaction strength and degeneracy. This quantity plays a central role in the many-body physics of strongly correlated systems, offering a link between few-body and thermodynamic behaviour.

Research paper thumbnail of Data for "Elliptic flow in a strongly interacting normal Bose gas

Data used to produce all the figures in the paper and the details of the experimental sequence fo... more Data used to produce all the figures in the paper and the details of the experimental sequence for taking it. Folders named "Eta***" contain information about the 3 panels in Figure 2, and the folder "Energy transfer..." about Figure 3.

Research paper thumbnail of Connecting Berezinskii-Kosterlitz-Thouless and BEC Phase Transitions by Tuning Interactions in a Trapped Gas

Physical Review Letters, 2015

We study the critical point for the emergence of coherence in a harmonically trapped two-dimensio... more We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with the classical-field predictions for the critical point of the Berezinskii-Kosterlitz-Thouless (BKT) superfluid transition. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely quantum-statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.

Research paper thumbnail of Unification of BKT and BEC Phase Transitions in a Trapped Two-Dimensional Bose Gas

Research paper thumbnail of Growth and solasodine production bySolanum aviculareandSolanum laciniatumunder moisture stress at different temperatures

New Zealand Journal of Agricultural Research, 1980

Cloned plants were grown in growth-chambers for 82 days under day/night temperatures of Is o / 10... more Cloned plants were grown in growth-chambers for 82 days under day/night temperatures of Is o / 10°, 20°/10°, 20°/1 So, 2So/1So, and 2So/20°C. Dry matter yields were greatest at 2SoC daytime temperatures. Solanum laciniatum also grew well in the coldest conditions, whereas growth of S. aviculare was depressed at the two lowest temperatures. Solasodine concentrations in leaves and particularly in sterns were lower at the warrnest temperatures. Total solasodine yield per plant remained approximately constant because of compensatory vegetative growth, except at the two temperature extremes. Fruiting was greatly enhanced by 20 0/IO°C treatment of S. laciniatum but S. aviculare did not respond. Severe moisture stress limited growth but increased solasodine concentrations in sterns and leaves; total solasodine production was reduced. A field trial showed that mild moisture stress, from withholding irrigation, lowered dry matter yields but had no effect on solasodine concentration, i.e., solasodine production per plant was less without irrigation.

Research paper thumbnail of Inhibition of animal and pathogenic fungal proteases by phloem exudate from pumpkin fruits (cucurbitaceae)

Journal of the Science of Food and Agriculture, 1986

Page 1. J. Sci. FoodAgric. 1986,37,515-522 Inhibition of Animal and Pathogenic Fungal Proteases b... more Page 1. J. Sci. FoodAgric. 1986,37,515-522 Inhibition of Animal and Pathogenic Fungal Proteases by Phloem Exudate from Pumpkin Fruits (Cucurbitaceae) D. Bryan MacGibbon and Jay D. Mann Applied Biochemistry Division ...

Research paper thumbnail of Risk assessments of low-level exposures

Research paper thumbnail of Elliptic flow in a strongly interacting normal Bose gas

We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisot... more We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that in our system this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalising power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes.

Research paper thumbnail of Two- and three-body contacts in the unitary Bose gas

Science

In many-body systems governed by pairwise contact interactions, a wide range of observables is li... more In many-body systems governed by pairwise contact interactions, a wide range of observables is linked by a single parameter, the two-body contact, which quantifies two-particle correlations. This profound insight has transformed our understanding of strongly interacting Fermi gases. Using Ramsey interferometry, we studied coherent evolution of the resonantly interacting Bose gas, and we show here that it cannot be explained by only pairwise correlations. Our experiments reveal the crucial role of three-body correlations arising from Efimov physics and provide a direct measurement of the associated three-body contact.

Research paper thumbnail of 捕捉ガスにおける相互作用の調整によるBerezinskii-Kosterlitz-Thouless及びBEC相転移の結合

Physical Review Letters, 2015

Research paper thumbnail of Research data supporting 'Two- and Three-body Contacts in the Unitary Bose Gas

The repository contains the raw Ramsey oscillation data that were used to extract the figure data... more The repository contains the raw Ramsey oscillation data that were used to extract the figure data points.

Research paper thumbnail of Audiovisual Reviews

Journal of Sex & Marital Therapy, 1976

Research paper thumbnail of Audiovisual Reviews

Journal of Sex & Marital Therapy, 1976

PHYSIOLOGICAL RESPONSES OF THE SEXUALLY STIMULATED MALE IN THE LABORATORY16mm, 16 minutes, color,... more PHYSIOLOGICAL RESPONSES OF THE SEXUALLY STIMULATED MALE IN THE LABORATORY16mm, 16 minutes, color, optical sound. Source: Focus International, Inc., 505 West End Avenue, New York, N. Y. 10024. Preview–$29.00; rental–$50.00; purchase-$290.00.THE MALE TRANSVESTITE; THE WAY OF THE TRANSSEXUAL: THE HARDEST DECISIONS; and THE WAY OF THE TRANSSEXUAL: THE STORY OF JOANNAudiotapes, 45 minutes each, sound. Source: Personal Counseling Service, Inc.,

Research paper thumbnail of Review of human sexuality film perspective

Journal of Sex & Marital Therapy, 1974

Research paper thumbnail of Two and Three-body Contacts in the Unitary Bose Gas

In many-body systems governed by pairwise contact interactions, a wide range of observables is li... more In many-body systems governed by pairwise contact interactions, a wide range of observables is linked by a single parameter, the two-body contact, which quantifies two-particle correlations. This profound insight has transformed our understanding of strongly interacting Fermi gases. Here, using Ramsey interferometry, we study coherent evolution of the resonantly interacting Bose gas, and show that it cannot be explained by only pairwise correlations. Our experiments reveal the crucial role of three-body correlations arising from Efimov physics, and provide a direct measurement of the associated three-body contact.

Research paper thumbnail of Elliptic flow in a strongly-interacting normal Bose gas

We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisot... more We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that in our system this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalising power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes.

Research paper thumbnail of Connecting Berezinskii-Kosterlitz-Thouless and BEC phase transitions by tuning interactions in a trapped gas

We study the critical point for the emergence of coherence in a harmonically trapped two-dimensio... more We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with the classical-field predictions for the critical point of the Berezinskii-Kosterlitz-Thouless (BKT) superfluid transition. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely quantum-statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.

Research paper thumbnail of Research data supporting 'Two- and Three-body Contacts in the Unitary Bose Gas

The repository contains the raw Ramsey oscillation data that were used to extract the figure data... more The repository contains the raw Ramsey oscillation data that were used to extract the figure data points.

Research paper thumbnail of Hydrodynamics of a unitary Bose gas

Bulletin of the American Physical Society, 2016

Research paper thumbnail of Unification of BKT and BEC Phase Transitions in a Trapped Two-Dimensional Bose Gas

We study the critical point for the emergence of coherence in a harmonically trapped two-dimensio... more We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional (2d) Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with predictions based on the Berezinskii-Kosterlitz-Thouless (BKT) theory of 2d superfluidity. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.

Research paper thumbnail of Clock shifts in the Unitary Bose Gas

Submitted for the DAMOP16 Meeting of The American Physical Society Clock shifts in the Unitary Bo... more Submitted for the DAMOP16 Meeting of The American Physical Society Clock shifts in the Unitary Bose Gas RICHARD FLETCHER, JAY MAN, RAPHAEL LOPES, NIR NAVON, ROBERT SMITH, ZORAN HADZ-IBABIC, University of Cambridge-Clock shifts are interaction-induced changes in the transition frequency between atomic spin states. So-called because of their importance as systematic errors in atomic clocks, they reveal details of both the interaction energy within a gas and the particle correlations. In this work, we employ a RF-injection technique to rapidly project a thermal Bose gas into the unitary regime on a timescale much shorter than three-body losses. Working with a two-state system, one of which exhibits strong intrastate interactions, we carry out Ramsey spectroscopy to extract the variation in the clock shift across a Feshbach resonance. Thanks to the relationship between these shifts and particle correlations, we use our measurements to infer the contact as a function of both interaction strength and degeneracy. This quantity plays a central role in the many-body physics of strongly correlated systems, offering a link between few-body and thermodynamic behaviour.

Research paper thumbnail of Data for "Elliptic flow in a strongly interacting normal Bose gas

Data used to produce all the figures in the paper and the details of the experimental sequence fo... more Data used to produce all the figures in the paper and the details of the experimental sequence for taking it. Folders named "Eta***" contain information about the 3 panels in Figure 2, and the folder "Energy transfer..." about Figure 3.

Research paper thumbnail of Connecting Berezinskii-Kosterlitz-Thouless and BEC Phase Transitions by Tuning Interactions in a Trapped Gas

Physical Review Letters, 2015

We study the critical point for the emergence of coherence in a harmonically trapped two-dimensio... more We study the critical point for the emergence of coherence in a harmonically trapped two-dimensional Bose gas with tuneable interactions. Over a wide range of interaction strengths we find excellent agreement with the classical-field predictions for the critical point of the Berezinskii-Kosterlitz-Thouless (BKT) superfluid transition. This allows us to quantitatively show, without any free parameters, that the interaction-driven BKT transition smoothly converges onto the purely quantum-statistical Bose-Einstein condensation (BEC) transition in the limit of vanishing interactions.

Research paper thumbnail of Unification of BKT and BEC Phase Transitions in a Trapped Two-Dimensional Bose Gas

Research paper thumbnail of Growth and solasodine production bySolanum aviculareandSolanum laciniatumunder moisture stress at different temperatures

New Zealand Journal of Agricultural Research, 1980

Cloned plants were grown in growth-chambers for 82 days under day/night temperatures of Is o / 10... more Cloned plants were grown in growth-chambers for 82 days under day/night temperatures of Is o / 10°, 20°/10°, 20°/1 So, 2So/1So, and 2So/20°C. Dry matter yields were greatest at 2SoC daytime temperatures. Solanum laciniatum also grew well in the coldest conditions, whereas growth of S. aviculare was depressed at the two lowest temperatures. Solasodine concentrations in leaves and particularly in sterns were lower at the warrnest temperatures. Total solasodine yield per plant remained approximately constant because of compensatory vegetative growth, except at the two temperature extremes. Fruiting was greatly enhanced by 20 0/IO°C treatment of S. laciniatum but S. aviculare did not respond. Severe moisture stress limited growth but increased solasodine concentrations in sterns and leaves; total solasodine production was reduced. A field trial showed that mild moisture stress, from withholding irrigation, lowered dry matter yields but had no effect on solasodine concentration, i.e., solasodine production per plant was less without irrigation.

Research paper thumbnail of Inhibition of animal and pathogenic fungal proteases by phloem exudate from pumpkin fruits (cucurbitaceae)

Journal of the Science of Food and Agriculture, 1986

Page 1. J. Sci. FoodAgric. 1986,37,515-522 Inhibition of Animal and Pathogenic Fungal Proteases b... more Page 1. J. Sci. FoodAgric. 1986,37,515-522 Inhibition of Animal and Pathogenic Fungal Proteases by Phloem Exudate from Pumpkin Fruits (Cucurbitaceae) D. Bryan MacGibbon and Jay D. Mann Applied Biochemistry Division ...

Research paper thumbnail of Risk assessments of low-level exposures

Research paper thumbnail of Elliptic flow in a strongly interacting normal Bose gas

We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisot... more We study the anisotropic, elliptic expansion of a thermal atomic Bose gas released from an anisotropic trapping potential, for a wide range of interaction strengths across a Feshbach resonance. We show that in our system this hydrodynamic phenomenon is for all interaction strengths fully described by a microscopic kinetic model with no free parameters. The success of this description crucially relies on taking into account the reduced thermalising power of elastic collisions in a strongly interacting gas, for which we derive an analytical theory. We also perform time-resolved measurements that directly reveal the dynamics of the energy transfer between the different expansion axes.

Research paper thumbnail of Two- and three-body contacts in the unitary Bose gas

Science

In many-body systems governed by pairwise contact interactions, a wide range of observables is li... more In many-body systems governed by pairwise contact interactions, a wide range of observables is linked by a single parameter, the two-body contact, which quantifies two-particle correlations. This profound insight has transformed our understanding of strongly interacting Fermi gases. Using Ramsey interferometry, we studied coherent evolution of the resonantly interacting Bose gas, and we show here that it cannot be explained by only pairwise correlations. Our experiments reveal the crucial role of three-body correlations arising from Efimov physics and provide a direct measurement of the associated three-body contact.